0001509432 2010-06-30 0001509432 2009-12-31 0001509432 2011-04-01 2011-06-30 0001509432 2010-04-01 2010-06-30 0001509432 2010-01-01 2010-06-30 0001509432 2011-06-30 0001509432 2010-12-31 0001509432 2011-08-08 0001509432 2011-01-01 2011-06-30 iso4217:USD xbrli:shares iso4217:USD xbrli:shares false --12-31 Q2 2011 2011-06-30 10-Q 0001509432 47121856 Non-accelerated Filer RPX Corp 5. Short-Term Investments The following table summarizes the Company's investment portfolio as of June 30, 2011 and December 31, 2010 (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="67%"> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="18" align="center">June 30, 2011</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="10" align="center">Unrealized</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Amortized Cost</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Gross Gains</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Gross Losses</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Net Gain (Loss)</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Fair Value</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Money market funds (1) </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">156,743</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">156,743</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> U.S. Government and Agency securities</td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">39,324</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">2</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">(22</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">(20</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom" nowrap="nowrap"> </td> <td valign="bottom" nowrap="nowrap" align="right">39,304</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">196,067</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">2</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">(22</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">(20</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom" nowrap="nowrap">$</td> <td valign="bottom" nowrap="nowrap" align="right">196,047</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td height="16"> </td> <td height="16" colspan="20"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="18" align="center">December 31, 2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="10" align="center">Unrealized</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Amortized Cost</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Gross Gains</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Gross Losses</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Net Gain (Loss)</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Fair Value</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Money market funds (1) </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">36,560</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">36,560</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td valign="top" width="2%" align="left"> (1)  </td> <td valign="top" align="left"> These assets are included within cash and cash equivalents. </td></tr></table> The maturity of the Company's entire investment portfolio was less than one year as of June 30, 2011 and December 31, 2010. As of June 30, 2011, no individual securities have been in a continuous unrealized loss for greater than 12 months. The Company did not have any realized gains (losses) on marketable securities during any of the periods presented. <div> 9. Accrued and Other Current Liabilities Accrued and other current liabilities consisted of the following (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="76%" align="center"> <tr><td width="77%"> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">June 30, 2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">December 31, 2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Accrued payroll-related expenses</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">3,993</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">4,379</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Other current liabilities</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,564</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6,216</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total accrued and other current liabilities</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">5,557</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">10,595</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table></div> 1996000 <div> 13. Common Stock In May 2011, the Company completed its IPO in which the Company sold and issued 9,065,000 shares of common stock, including 634,565 shares issued pursuant to an over-allotment option granted to the underwriters. The shares were sold by the underwriter at a price of $19.00 per share and the Company received proceeds of $160.2 million after deduction of underwriting discounts and commissions. The Company incurred offering costs of $2.9 million. Upon the closing of the IPO, all shares of redeemable convertible preferred stock outstanding automatically converted into 26,229,722 shares of common stock. As of June 30, 2011, the Company had the following common stock outstanding (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="76%" align="center"> <tr><td width="90%"> </td> <td valign="bottom" width="4%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Common stock outstanding at December 31, 2010</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">10,944</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Common stock issued in IPO</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">9,065</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Conversion of mandatorily redeemable convertible preferred stock to common stock</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">26,230</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Issuance of common stock</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">883</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Common stock outstanding at June 30, 2011</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">47,122</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> In connection with the IPO, the Company increased the number of shares of common stock authorized for issuance from 60,000,000 shares to 200,000,000 shares.</div> 62793000 583000 3576000 867000 436000 120000 198000 67000 68000 42000 <div> 10. Notes Payable and Other Obligations Notes payable and other obligations consisted of the following (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="76%" align="center"> <tr><td width="76%"> </td> <td valign="bottom" width="8%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="8%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">June 30, 2011</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">December 31, 2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Notes payable</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">7,579</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Other obligations</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7,616</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">16,004</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7,616</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">23,583</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Less: current portion</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(6,517</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(18,527</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total notes payable and other obligations, non-current</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,099</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">5,056</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table>   Notes Payable On January 27, 2010, the Company entered into a loan agreement with a client in order to partially finance the acquisition of certain patent assets from a third party. Under the terms of the agreement, the Company issued a promissory note payable in the amount of $2.0 million. The note bore interest of 0.57% per annum. The interest and principal were payable in their entirety on the maturity date of April 1, 2011. The principal balance was recorded at fair value. The outstanding principal balance at December 31, 2010 was $2.0 million. The Company repaid the note in April 2011. On October 7, 2008, the Company entered into a patent rights purchase and assignment agreement to purchase patent assets for a total of $15.0 million. Under the terms of the agreement, the Company paid $1.5 million in cash and issued a promissory note in the amount of $13.5 million bearing interest of 10% per annum and payable in quarterly installments over a three-year period ending October 7, 2011. The principal balance was recorded at fair value. The remaining principal due was $3.4 million at December 31, 2010. The Company repaid the note in full in June 2011. On September 11, 2008, the Company entered into a patent rights purchase and assignment agreement to purchase patent assets for a total of $17.0 million. Under the terms of the agreement, the Company issued a promissory note in the amount of $17.0 million of which 10%, or $1.7 million, was paid upfront. The note bore interest of 10% per annum. The principal and interest were payable in quarterly installments over a three-year period ending September 11, 2011. The principal balance was recorded at fair value. The remaining principal due was $2.1 million at December 31, 2010. The Company repaid the note in full in June 2011. Other Obligations On July 6, 2009, the Company entered into an agreement to purchase certain patent assets for a total of $4.4 million. Under the terms of the agreement, the Company paid $1.1 million upfront, with a remaining non-interest bearing contract obligation of $3.3 million due in three equal installments in July of each of 2010, 2011 and 2012. The contract obligation was recorded at fair value utilizing the imputed interest rate method. Interest was imputed using a rate of 10.2% per annum, which represented the Company's estimated market borrowing rate as of the initial transaction date. As of both June 30, 2011 and December 31, 2010, the remaining unpaid principal balance associated with the obligation was $2.2 million. On February 18, 2009, the Company entered into an agreement to acquire certain patent assets for a total of $12.0 million. Under the terms of the agreement, the Company paid $4.0 million upfront, with a remaining non-interest bearing contract obligation of $8.0 million due in two equal installments in February 2010 and 2011. The contract obligation was recorded at fair value utilizing the imputed interest rate method. Interest was imputed using a rate of 13.0% per annum, which represented the Company's estimated market borrowing rate as of the initial transaction date. As of December 31, 2010, the remaining unpaid principal balance associated with the obligation was $4.0 million. The remaining principal balance of $4.0 million was paid in full in February 2011. On January 26, 2009, the Company entered into an agreement to acquire certain patent assets for a total of $12.0 million. Under the terms of the agreement, the Company paid $3.0 million upfront, with a remaining non-interest bearing contract obligation of $9.0 million due in three equal installments in January 2010, 2011 and 2012. The contract obligation was recorded at fair value utilizing the imputed interest rate method. Interest was imputed using a rate of 13.9% per annum, which represented the Company's estimated market borrowing rate as of the date of the transaction. As of June 30, 2011 and December 31, 2010, the remaining unpaid principal balance associated with the obligation was $3.0 million and $6.0 million, respectively. On December 16, 2008, the Company entered into agreements to acquire certain patent assets for a total of $2.2 million. Under the terms of the agreements, the Company paid $550,000 upfront, with a remaining non-interest bearing contract obligation of $1.7 million due in three equal installments in December 2009, 2010 and 2011. The contract obligation was recorded at fair value utilizing the imputed interest rate method. Interest was imputed using a rate of 10.0% per annum, which represented the Company's estimated market borrowing rate as of the initial transaction date. The remaining unpaid principal balance associated with the obligation was $550,000 at both June 30, 2011 and December 31, 2010.</div> 1010000 126508000 139844000 12079000 95000 20443000 16404000 108000 72000 484000 210000

634000

964000

12632000

6272000

7281000

4664000

51000

225159000

197022000

358193000

68342000

212974000

<div> 2. Acquisition of Business On June 1, 2011, RPX acquired substantially all of the assets of a patent research and intellectual property news provider for $3.0 million in cash. The acquired business is a patent research and intellectual property news provider. The acquisition expands RPX's market intelligence and data analysis capabilities. The acquisition has been accounted for as a business combination. Identifiable intangible assets acquired were recorded at fair value as of the acquisition date. No cash or tangible assets were acquired and no liabilities assumed. Acquisition-related costs of $43,000 were expensed during the three months ended June 30, 2011. Under business combination accounting, the total purchase price was allocated to the acquired company's identifiable intangible assets based on their estimated fair values as of June 1, 2011 with remainder recorded as goodwill. Approximately $1.7 million of goodwill and $1.3 million of identifiable intangible assets were allocated in connection with the acquisition. The goodwill primarily relates to cost benefits and operational synergies realized by applying the research capabilities inherent in the acquired company's business to other data and research systems at RPX. The acquired goodwill of $1.7 million is deductible for U.S. federal income tax purposes. RPX included the effect of the transaction in its results of operations prospectively from the date of the acquisition. Pro forma financial information for the acquisition has not been presented, as the effects were not material to RPX's historical consolidated financial statements.</div>

28928000

40072000

46656000

159393000

11144000

112737000

<div> 12. Commitments and Contingencies Operating Lease Commitments The Company leases approximately 30,000 square feet of office space in California under two separate, non-cancelable agreements, which commenced in August 2010 and December 2009. Both leases expire in April 2013. The Company also entered into a non-cancelable lease for approximately 1,400 square feet of office space in Japan, which commenced in November 2010 and expires in August 2013. Rent expense related to the non-cancelable operating leases was $357,000 and $714,000 for the three and six months ending June 30, 2011, respectively. Rent expense related to the non-cancelable operating leases was $98,000 and $196,000 for the three and six months ending June 30, 2010, respectively. The aggregate future non-cancelable minimum lease payments for the Company's operating leases as of June 30, 2011 were as follows (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="76%" align="center"> <tr><td width="90%"> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">Year Ending December 31,</td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> 2011 (remainder)</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">737</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> 2012</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,564</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> 2013</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">622</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> 2014 and Thereafter</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total future non-cancelable minimum lease payments</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">2,923</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> Litigation From time to time, the Company may be a party to various litigation claims in the normal course of business. Legal fees and other costs associated with such actions are expensed as incurred. The Company assesses, in conjunction with its legal counsel, the need to record a liability for litigation. A liability is recorded when and if it is determined that such a liability for litigation is both probable and reasonably estimable. As of June 30, 2011, the Company was not a party to any litigation and no liabilities for litigation have been accrued. Other Commitments and Contingencies On September 10, 2010, the Company entered into certain agreements with a special-purpose entity formed for the sole purpose of acquiring specific patent assets that had been made available for sale by a third party. If the entity was successful in acquiring the patent assets, the Company had agreed to make a $5.0 million investment in the equity securities of the entity and serve as the exclusive licensing agent for the entity. As of June 30, 2011, the third party had completed the sale of the assets and the special-purpose entity was not the buyer. Therefore, no investment in such entity has been made and the Company has no further obligations under these agreements. On December 12, 2008, in connection with the acquisition of certain patent assets from an unaffiliated third party in an arm's-length transaction, the Company agreed to make a one-time payment of $5.0 million in the event that the Company earns $170.0 million of annual subscription revenues in any calendar year. No provision has been made for this contingency as of June 30, 2011.</div>

0.0001

60000000

200000000

11432000

47122000

10944000

47122000

1000

5000

17949000

10216000

28193000

14528000

<div> 11. Lines of Credit On August 5, 2010, the Company entered into a standby letter of credit agreement with a banking institution. The credit facility provides for a $220,000 line of credit in conjunction with the Company's corporate real estate lease. The credit facility, which expires on June 14, 2013, is secured by a priority interest in the Company's savings account at the banking institution in the amount of $220,000. This amount has been classified as non-current restricted cash in the consolidated balance sheets.   On September 23, 2008, the Company entered into a line of credit agreement with a banking institution. The credit facility provides for a $500,000 line of credit. The credit is secured by a priority interest in the Company's savings account at the banking institution in the amount of $500,000, which has been classified as current restricted cash in the consolidated balance sheets. Under the credit facility, a sub-facility of $300,000 is available for a company-sponsored travel and expense credit card program, and a sub-facility of $200,000 is available under a revolving line of credit. Amounts borrowed under the $300,000 sub-facility, which terminates on April 5, 2012, will be charged a fixed rate of interest of 5% per year. Amounts borrowed under the $200,000 revolving line of credit, which terminates on April 15, 2012, will be charged a variable rate of interest equal to the greater of the banking institution's prime rate or 5%. The banking institution's prime rate at both June 30, 2011 and December 31, 2010 was 3.25%. As of June 30, 2011 and December 31, 2010, balances under the corporate credit card were $169,000 and $108,000, respectively, and such amounts were recorded in accounts payable. There were no outstanding balances under the revolving line of credit at June 30, 2011 or December 31, 2010.</div>

25000

73235000

75599000

9205000

11975000

2567000

2543000

6146000

17771000

28176000

<div> 14. Equity Award Plans On February 23, 2011, the Board of Directors adopted the 2011 Equity Incentive Plan (the "2011 Plan"), which became effective in May 3, 2011, the date of the Company's IPO. The 2011 Plan provides for the issuance of incentive stock options, non-qualified stock options, stock appreciation rights, restricted shares of the Company's common stock, and stock units to employees, directors and consultants. The Board of Directors reserved 1,500,000 shares of common stock for future issuance under the 2011 Plan. On August 11, 2008, the Board of Directors adopted the 2008 Stock Option Plan (the "2008 Plan"), which provides for the issuance of incentive stock options, non-qualified stock options, as well as the direct award or sale of shares of common stock to employees, directors and consultants for up to 9,019,474 shares of common stock, as amended. No further awards will be made under the 2008 Plan; however, all awards outstanding under the 2008 Plan will continue to be governed by the existing terms. Under both the 2008 Plan and 2011 Plan, incentive stock options and non-qualified stock options are to be granted at a price not less than 100% of the fair value of the stock at the date of grant. Options granted to newly hired employees vest 25% on the first anniversary of the date of hire and ratably each month over the ensuing 36-month period. Options granted to existing employees generally vest ratably over the 48 months following the date of grant. Options are exercisable for a maximum period of ten years after date of grant. Incentive stock options granted to stockholders who own more than 10% of the outstanding stock of the Company at the time of grant must be issued at an exercise price not to be less than 110% of the fair value of the stock on the date of grant. As of June 30, 2011 there were 1,469,234 shares available for grant under the 2011 Plan. Stock Options The total stock options outstanding are summarized as follows:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="76%" align="center"> <tr><td width="74%"> </td> <td valign="bottom" width="7%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="7%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Number of Options</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Weighted- Average Exercise Price</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Outstanding at December 31, 2010</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6,455,646</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">2.83</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Granted</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,156,149</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">12.96</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Exercised</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(767,425</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">0.68</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Forfeited</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(88,542</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1.02</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Outstanding at June 30, 2011</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7,755,828</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">8.92</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr></table>   Restricted Stock Units The summary of the restricted stock unit activity is as follows:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="76%" align="center"> <tr><td width="73%"> </td> <td valign="bottom" width="9%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="9%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Number of Shares</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Weighted- Average Grant Date Fair Value</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Unvested at December 31, 2010</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Granted</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">84,467</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">27.96</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Vested</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Forfeited</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Unvested at June 30, 2011</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">84,467</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">27.96</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr></table> Stock-Based Compensation Related to Employees and Non-Employee Directors The Company estimates the fair value of stock options using the Black-Scholes option pricing model. Option valuation models, including the Black-Scholes option pricing model, require the input of various assumptions, including stock price volatility. Changes in the assumptions can materially affect the fair value and ultimately how much stock-based compensation expense is recognized. The weighted average assumptions and resulting fair values were as follows:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="92%" align="center"> <tr><td width="67%"> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Three Months Ended June 30,</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Six Months Ended June 30,</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Risk-free interest rate</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2.38</td> <td valign="bottom" nowrap="nowrap">% </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2.57</td> <td valign="bottom" nowrap="nowrap">% </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2.58</td> <td valign="bottom" nowrap="nowrap">% </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2.69</td> <td valign="bottom" nowrap="nowrap">% </td></tr> <tr><td valign="top"> Expected volatility</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">58</td> <td valign="bottom" nowrap="nowrap">% </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">60</td> <td valign="bottom" nowrap="nowrap">% </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">58</td> <td valign="bottom" nowrap="nowrap">% </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">60</td> <td valign="bottom" nowrap="nowrap">% </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Expected dividend yield</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Expected term (years)</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5.9</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6.0</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6.5</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6.0</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Weighted average estimated fair value</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">11.26</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1.43</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">7.41</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1.32</td> <td valign="bottom" nowrap="nowrap">  </td></tr></table> For Restricted Stock Units (RSUs), stock-based compensation expense was calculated based on the Company's stock price on the date of grant, multiplied by the number of units granted. The grant date fair value of RSUs, less estimated forfeitures, is recognized on a straight-line basis over the requisite service period. Stock-based compensation expense related to employees was $1.3 million and $2.1 million, for the three and six months ended June 30, 2011, respectively. Stock compensation expense related to employees was $146,000 and $283,000, for the three and six months ended June 30, 2010, respectively. Stock-based compensation of $17,000 and $29,000 was capitalized during the three and six months ended June 30, 2011, respectively, as part of the cost of internal-use software. No stock-based compensation expense was capitalized during the three or six months ended June 30, 2010. Stock-based compensation expense is recognized ratably over the requisite service period. At June 30, 2011, there was $18.6 million of unrecognized compensation cost related to options which is expected to be recognized over a weighted average period of 3.9 years. At June 30, 2011, there was $1.8 million of unrecognized compensation cost related to RSUs which is expected to be recognized over a weighted average period of 3.8 years. Future option grants will increase the amount of stock-based compensation expense to be recorded. Stock-Based Compensation Related to Non-Employees The Company periodically grants options to non-employees in exchange for goods and services. During the six months ended June 30, 2011, the Company issued 10,000 shares of common stock and options to purchase 35,000 shares of common stock to non-employees in exchange for services. No awards were granted to non-employees in exchange for goods and services during the six months ended June 30, 2010. Stock-based compensation expense related to non-employees was $0.6 million and $0.8 million for the three and six months ended June 30, 2011, respectively. Stock-based compensation expense related to non-employees was $46,000 and $66,000 for the three and six months ended June 30, 2010, respectively. The Company accounts for these stock options using the variable accounting model and re-measures them each accounting period.</div>

0.11

0.06

0.31

0.16

0.11

0.05

0.29

0.15

<div> <div> 3. Net Income Attributable to Common Stockholders Basic and diluted net income per share attributable to common stockholders are presented in conformity with the two-class method required for participating securities. Holders of shares of Series A, Series A-1, Series B and Series C redeemable convertible preferred stock are each entitled to receive 8% per annum non-cumulative dividends, payable prior and in preference to any dividends on common stock. In addition, the holders of restricted common stock are entitled to receive non-forfeitable dividends if declared. Under the two-class method, basic net income per share attributable to common stockholders is computed by dividing the net income attributable to common stockholders by the weighted average number of shares of common stock outstanding during the period. Net income attributable to common stockholders is determined by allocating undistributed earnings, calculated as net income less current period non-cumulative dividends attributable to shares of Series A, Series A-1, Series B and Series C redeemable convertible preferred stock, among common stockholders, restricted stockholders and Series A, Series A-1, Series B and Series C redeemable convertible preferred stockholders. Diluted net income per share attributable to common stockholders is computed by using the weighted average number of shares of common stock outstanding, including potential dilutive shares of common stock, assuming the dilutive effect of outstanding stock options and unvested restricted stock units using the treasury stock method. The following table presents the calculation of basic and diluted net income per share attributable to common stockholders (in thousands, except per share data):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="92%" align="center"> <tr><td width="71%"> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Three Months Ended June 30,</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Six Months Ended June 30,</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Numerator:</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Net income</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">7,666</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">3,321</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">14,361</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">6,441</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Less: Allocation of net income to participating shares</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,952</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3,008</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">8,754</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5,879</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Numerator for basic calculation</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">4,714</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">313</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5,607</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">562</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Undistributed earnings re-allocated to common stockholders</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">210</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">72</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">484</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">108</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Numerator for diluted calculation</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">4,924</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">385</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">6,091</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">670</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Denominator:</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Denominator for basic calculation, weighted average number of shares of common stock outstanding</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">28,941</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5,495</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">18,141</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5,153</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Dilutive effect of options using treasury-stock method</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">4,190</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,536</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3,046</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,187</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Denominator for diluted calculation</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">33,131</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7,031</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">21,187</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6,340</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Net income per share:</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Basic net income per share of common stock</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.16</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.06</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.31</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.11</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Diluted net income per share of common stock</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.15</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.05</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.29</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">0.11</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table>   For the three and six months ended June 30, 2011 and 2010, the following securities were not included in the calculation of diluted shares outstanding, as the effect would have been anti-dilutive (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="92%" align="center"> <tr><td width="72%"> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Three Months Ended June  30,</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Six Months Ended June 30,</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Weighted average number of shares of redeemable convertible preferred stock</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">11,241</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">25,741</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">18,694</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">25,741</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Weighted average number of shares of common stock subject to repurchase</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3,505</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5,865</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3,741</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6,165</td> <td valign="bottom" nowrap="nowrap">  </td></tr></table></div></div>

203000

<div> 4. Fair Value Measurements The Company's financial assets are valued using market prices on both active markets ("Level 1") and less active markets ("Level 2"). Level 1 instrument valuations are obtained from real-time quotes for transactions in active exchange markets involving identical assets. Level 2 instrument valuations are obtained from readily available pricing sources for comparable instruments. As of June 30, 2011 and December 31, 2010, the Company did not have any financial assets without observable market values that would require a high level of judgment to determine fair value ("Level 3"). The following tables present the financial assets measured at fair value on a recurring basis as of June 30, 2011 and December 31, 2010 (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="84%" align="center"> <tr><td width="68%"> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="10" align="center">June 30, 2011</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Total Balance</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 1</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 2</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Assets:</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Money market funds (1) </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">156,743</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">156,743</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> U.S. Government and Agency securities</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">39,304</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">39,304</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">196,047</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">156,743</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">39,304</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td height="16"> </td> <td height="16" colspan="12"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="10" align="center">December 31, 2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Total Balance</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 1</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Level 2</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Assets:</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td></tr> <tr><td valign="top"> Money market funds (1) </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">36,560</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">36,560</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td valign="top" width="2%" align="left"> (1)  </td> <td valign="top" align="left"> These assets are included within cash and cash equivalents.</td></tr></table></div>

<div> 8. Goodwill and Intangible Assets, Net Goodwill The changes in the carrying amount of goodwill for the six months ended June 30, 2011 were as follows (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="68%" align="center"> <tr><td width="89%"> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Balance as of December 31, 2010</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Goodwill additions</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,675</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Balance as of June 30, 2011</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,675</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table>   Intangible Assets, Net Intangible assets, net at June 30, 2011 and December 31, 2010 consisted of (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="51%"> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="2%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="10" align="center">June 30, 2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="10" align="center">December 31, 2010</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Weighted Average Lives</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Carrying Amount</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Accumulated Amortization</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Net Carrying Amount</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Carrying Amount</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Accumulated Amortization</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">Net Carrying Amount</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Developed technology</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">35 months</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">510</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(12</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">498</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Customer relationship</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">36 months</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">250</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(7</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">243</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Non-compete</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">24 months</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">60</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(2</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">58</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Trademarks</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">36 months</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">720</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(20</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">700</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Other intangible assets</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">48 months</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,450</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(1,048</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">402</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,450</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(867</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">583</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">2,990</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(1,089</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,901</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,450</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">(867</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">583</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> The estimated future amortization expenses for intangible assets are summarized below (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="68%" align="center"> <tr><td width="89%"> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">Year Ending December 31,</td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> 2011 (remainder)</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">445</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> 2012</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">748</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> 2013</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">509</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> 2014</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">199</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> 2015 and Thereafter</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Total estimated future amortization expense</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,901</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> Amortization expense for the three and six months ended June 30, 2011 and was $132,000 and $223,000, respectively. Amortization expense for the three and six months ended June 30, 2010 and was $91,000 and $181,000, respectively.</div>

11085000

5714000

25085000

12843000

<div> 15. Income Taxes The Company uses an estimated annual effective tax rate based upon a projection of its annual fiscal year results to measure the income tax benefit or expense recognized in each interim period. Our effective tax rate for the six months ended June 30, 2011 was 42.8% compared to 41.9% for the six months ended June 30, 2010. The higher effective tax rate for the six months ended June 30, 2011 was primarily due to an increase in stock-based compensation. The difference between the consolidated effective income tax rate and the U.S. federal statutory rate is primarily attributable to the effect of certain permanent differences and state income taxes. Tax years 2009 and 2008 are currently under examination by the United States Internal Revenue Service and the State of California Franchise Tax Board. The Company does not expect a material impact on its consolidated financial statements as a result of these examinations.</div>

4644000

2393000

10724000

5177000

-679000

330000

-3451000

-6360000

3898000

-3205000

42708000

5014000

139000

-666000

<div> 6. Patent Assets, Net Changes in the carrying value of patent assets during the periods ended were as follows (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="76%" align="center"> <tr><td width="74%"> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">June 30, 2011</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">December 31, 2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Balance, beginning of period</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">126,508</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">82,759</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Acquisition costs of patent assets</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">41,151</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">88,639</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Amortization expense</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(27,815</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(42,887</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr><td valign="top"> Other adjustments</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">—  </td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(2,003</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Balance, end of period</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">139,844</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">126,508</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> The Company's acquired patent assets are comprised of intellectual property rights that relate to information technologies used by companies in a variety of industries, including software, e-commerce, semiconductors, financial services, mobile communications, consumer electronics and networking. The Company amortizes each acquired portfolio of patent assets on a straight-line basis over its estimated economic useful life. As of June 30, 2011 and December 31, 2010, the estimated economic useful lives of the Company's patent assets generally ranged from 24 to 60 months, and the weighted average estimated economic useful life was 49 months for both periods. The following table summarizes the estimated future amortization expense of patent assets as of June 30, 2011 (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="68%" align="center"> <tr><td width="87%"> </td> <td valign="bottom" width="5%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom">Year Ending December 31,</td> <td valign="bottom">  </td> <td valign="bottom" colspan="2"> </td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> 2011 (remainder)</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">30,926</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> 2012</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">49,298</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> 2013</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">35,484</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> 2014</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">16,071</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> 2015</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">6,999</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Thereafter</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,066</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total estimated future amortization expense</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">139,844</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table>   Amortization expense was approximately $14.3 million and $27.8 million for the three and six months ending June 30, 2011, respectively. Amortization expense was approximately $7.5 million and $10.0 million for the three and six months ending June 30, 2010, respectively. Structured Acquisitions Structured acquisitions are transactions involving patent assets that cost more than the Company is prepared to spend with its own capital resources or that are relevant only to a very small number of clients. In such transactions, the Company works to acquire these assets with financial assistance from the particular clients against whom the assets are being or may be asserted. When this occurs, the participating clients typically pay amounts separate from their subscription fees and receive an immediate perpetual license to the acquired patent assets. The Company may treat the payments received from the participating clients as revenue either on a gross or a net basis depending on the specific facts and circumstances of the transaction. In the event that such payments are recognized on a net basis, the Company will capitalize the acquired asset that relates to its non-participating clients. In such instance, the cost basis of the acquired patent rights excludes the amounts paid by the participating client. Barter Transactions The Company accounts for non-monetary exchanges in accordance with ASC 845, Non-monetary Transactions ("ASC 845"), which requires non-monetary exchanges to be based on the fair value of the assets or services involved. There were no barter transactions during the three months ended June 30, 2011. During the six months ended June 30, 2011, the total fair value of intangible assets exchanged for subscription services was approximately $120,000. No gain or loss was recorded as a result of this exchange. There were no barter transactions during the three or six months ended June 30, 2010.</div>

1752000

781000

634000

235000

195000

123522000

108013000

197022000

358193000

102991000

88637000

124000

156000

-20367000

143652000

-43158000

-86002000

74669000

55087000

6441000

3321000

14361000

7666000

562000

313000

5607000

4714000

670000

385000

6091000

4924000

12639000

6428000

25651000

13036000

<div> 1. Basis of Presentation and Significant Accounting Policies Basis of Presentation The accompanying interim consolidated financial statements of RPX Corporation (also referred to herein as "RPX" or the "Company") are unaudited and have been prepared in accordance with the accounting principles generally accepted in the United States of America ("US GAAP") and with the instructions for Form 10-Q and Regulation S-X statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with US GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto contained in the Company's prospectus filed with the Securities and Exchange Commission ("SEC") on May 4, 2011. The unaudited consolidated financial statements include the accounts of RPX and its subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. The accompanying interim consolidated financial statements have been prepared on the same basis as the annual audited consolidated financial statements and, in the opinion of management, reflect all adjustments, consisting of normal recurring adjustments, considered necessary for a fair presentation of the Company's financial position and results of operations for the periods presented. The consolidated results of operations for any interim period are not necessarily indicative of the results to be expected for the full year or for any other future year or interim period. There have been no significant new accounting pronouncements or changes to the critical accounting policies disclosed in the Company's prospectus that have had a significant impact on its consolidated financial statements or notes thereto. Liquidity and Capital Resources In May 2011, the Company completed its initial public offering ("IPO") of its common stock in which the Company issued 9,065,000 common shares and received cash proceeds of $160.2 million, net of underwriting discounts and commissions. The Company incurred offering costs of $2.9 million. Prior to the IPO, substantially all of the Company's operations and patent asset acquisitions had been financed through the private sale of equity securities, subscription fees collected from its clients and patent-seller financing. As of June 30, 2011 and December 31, 2010, the Company had cash and cash equivalents of $159.4 million and $46.7 million, respectively, and retained earnings of $25.0 million and $10.7 million, respectively. Management expects that it will use substantial cash in the future to acquire additional patent assets and service the obligations undertaken in connection with prior patent asset purchases. Management believes that the Company has adequate cash resources to continue its operations for the foreseeable future. Concentration of Risk The Company is subject to concentrations of credit risk principally attributable to cash and cash equivalents, investments and accounts receivable. The Company places its cash in non-interest bearing accounts at financial institutions which are insured by the Federal Deposit Insurance Corporation. Cash equivalents primarily consist of institutional money market funds and short-term investments consist of U.S. Government and Agency securities. Credit risk with respect to accounts receivable is generally mitigated by short collection periods and/or subscription agreements that provide for payments in advance of the rendering of services. Two clients accounted for 53% and 37% of accounts receivable at June 30, 2011. Three clients accounted for 45%, 33% and 22% of accounts receivable at December 31, 2010. No client accounted for 10% or more of subscription fee revenue for the three or six months ended June 30, 2011 and 2010.   Short-Term Investments The Company holds short-term investments in marketable debt securities, consisting primarily of fixed income U.S. Government and Agency securities. The Company classifies these securities as "available-for-sale", and carries them at fair value on the consolidated balance sheets. Any unrealized gains or losses are recorded, net of estimated taxes, in accumulated other comprehensive income, a component of stockholders' equity. Realized gains and losses are recognized upon sale. The specific identification method is used to determine the cost basis of fixed income securities sold. The Company considers its investments as available to support current operations. Consequently, the Company may not hold securities with maturities greater than twelve months until maturity. As a result, the Company classifies its investments including those with stated maturities beyond twelve months, as current assets in the accompanying consolidated balance sheets. The Company periodically evaluates its investments for impairment due to declines in market value considered to be "other-than-temporary". This evaluation consists of several qualitative and quantitative factors, including the Company's ability and intent to hold the investment until a forecasted recovery occurs, as well as any decline in the investment quality of the security and the severity and duration of the unrealized loss. In the event of a determination that a decline in market value is other-than-temporary, the Company will recognize an impairment loss, and a new cost basis in the investment will be established. To date, the Company has not recorded any impairment related to its investments in its consolidated statement of operations. Restricted Cash The Company had restricted cash of $720,000 at both June 30, 2011 and December 31, 2010 pledged under two lines of credit. See Note 11. Goodwill Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. The Company evaluates goodwill for impairment on an annual basis or whenever events and changes in circumstances suggest that the carrying amount may not be recoverable. Because the Company has one reporting unit, the Company utilizes the entity-wide approach to assess goodwill for impairment. No impairment has been recorded through June 30, 2011. Intangible Assets, Net Intangible assets, net consist of intangible assets acquired from other companies as a result of acquisitions. Such assets are capitalized and amortized on a straight-line basis over the estimated useful life of the intangible assets. Intangible assets, net excludes patent related intangible assets, which are recorded within patent assets, net in the accompanying consolidated balance sheets. Internal-Use Software and Website Development Costs For its website development costs and the development costs related to other internal-use software, the Company capitalizes costs incurred during the application development stage, and reflects such amounts within the property and equipment, net line item on the consolidated balance sheets. Costs related to preliminary project activities, minor enhancement and maintenance and post implementation activities are expensed as incurred. Internal-use software is generally amortized on a straight-line basis over three years beginning on the date the software is placed into service. Management evaluates the useful lives of these assets on an annual basis and tests for impairment whenever events or changes in circumstances occur that could impact the recoverability of these assets. For the three and six months ended June 30, 2011, the Company capitalized $0.4 million and $0.6 million of software development costs, respectively. No amount was capitalized for either the three or six months ended June 30, 2010. Amortization of internal-use software was $23,000 for both the three and six months ended June 30, 2011. There was no amortization of internal-use software for either the three or six months ended June 30, 2010. Comprehensive Income Comprehensive income consists of net income and charges or credits to stockholders' equity primarily related to changes in unrealized gains or losses on marketable securities, net of taxes. For the periods presented, the Company's comprehensive net income approximates its net income, therefore no separate components of comprehensive income are provided.   Recent Accounting Pronouncements In June 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") No. 2011-05, "Presentation of Comprehensive Income" ("ASU 2011-05"). ASU 2011-05 eliminates the option to present the components of other comprehensive income as part of the statement of shareholders' equity. Instead, the Company must report comprehensive income in either a single continuous statement of comprehensive income which contains two sections, net income and other comprehensive income, or in two separate but consecutive statements. ASU 2011-05 does not change the items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income. ASU 2011-05 is effective retrospectively for fiscal years, and interim periods within those years, beginning after December 15, 2011. Early adoption is permitted. The adoption of this guidance is not expected to have material impact on the Company's consolidated financial position, results of operations, or cash flows. In May 2011, the FASB issued ASU 2011-04, "Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS" ("ASU 2011-04"). The amendments in ASU 2011-04 result in common fair value measurement and disclosure requirements in U.S. GAAP and IFRS. Consequently, ASU 2011-04 changes the wording used to describe many of the requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements. For many of the requirements, the FASB does not intend for the amendments in ASU 2011-04 to result in a change in the application of the requirements in Topic 820. ASU 2011-04 is effective prospectively for interim and annual reporting periods beginning after December 15, 2011. The adoption of this guidance is not expected to have material impact on the Company's consolidated financial position, results of operations, or cash flows. In December 2010, the FASB issued ASU 2010-29, "Disclosure of Supplementary Pro Forma Information for Business Combinations" ("ASU 2010-29"). ASU 2010-29 amends and clarifies the acquisition date to be used for reporting pro forma financial disclosures when comparative financial statements are presented. In addition, it requires a description of the nature of and amount of any material, non-recurring pro forma adjustments directly attributable to the business combination. ASU 2010-29 is effective prospectively for business combinations for which the acquisition date is on or after the beginning of the first annual reporting period beginning on or after December 15, 2010. The Company adopted this amendment effective January 1, 2011. There was no impact on the Company's consolidated financial position, results of operations, or cash flows. In December 2010, the FASB issued ASU 2010-28, "When to Perform Step 2 of the Goodwill Impairment Test for Reporting Units with Zero or Negative Carrying Amounts" ("ASU 2010-28"). ASU 2010-28 modifies Step 1 of the goodwill impairment test for reporting units with zero or negative carrying amounts. For those reporting units, an entity is required to perform Step 2 of the goodwill impairment test if it is more likely than not that a goodwill impairment exists. In determining whether it is more likely than not that a goodwill impairment exists, an entity should consider whether there are any adverse qualitative factors indicating that an impairment may exist. The qualitative factors are consistent with existing guidance which requires that goodwill of a reporting unit be tested for impairment between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. This ASU is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2010. The Company adopted this amendment effective January 1, 2011. There was no impact on the Company's consolidated financial position, results of operations, or cash flows.</div>

746000

356000

18527000

6517000

5056000

1099000

-2000

4000

3314000

893000

40100000

3000000

43048000

43151000

110000

706000

26230000

5987000

4962000

157828000

76000

2025000

970000

80000

<div> 7. Property and Equipment, Net Property and equipment, net consisted of the following (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="76%" align="center"> <tr><td width="76%"> </td> <td valign="bottom" width="9%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="9%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">June 30, 2011</td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">December 31, 2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Computer, equipment and software</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,079</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">399</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Furniture and fixtures</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">268</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">220</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Leasehold improvements</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">79</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">56</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Work-in-progress</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">41</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">53</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">1,467</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">728</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Less: Accumulated depreciation and amortization</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(244</td> <td valign="bottom" nowrap="nowrap">) </td> <td valign="bottom"> </td> <td valign="bottom"> </td> <td valign="bottom" align="right">(105</td> <td valign="bottom" nowrap="nowrap">) </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total property and equipment, net</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">1,223</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom"> </td> <td valign="bottom">$</td> <td valign="bottom" align="right">623</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> Depreciation expense was approximately $84,000 and $139,000 for the three and six months ending June 30, 2011, respectively. Depreciation expense was approximately $10,000 and $16,000 for the three and six months ending June 30, 2010, respectively.</div>

623000

1223000

<div> 16. Related Party Transactions Two of the Company's directors also serve on the boards of directors of RPX clients. For the three and six months ended June 30, 2011, the Company recognized subscription fee revenue of $0.7 million and $1.3 million, respectively, related to these clients. For the three and six months ended June 30, 2010, the Company recognized subscription fee revenue of $0.7 million and $1.3 million, respectively, related to these clients. As of June 30, 2011 and December 31, 2010, there were no receivables due from either of these clients. In April 2011, the Company sold an aggregate of 105,708 shares of its common stock at a price of $14.19 per share to two members of its Board of Directors.</div>

500000

220000

10655000

25016000

40047000

21835000

73240000

38850000

<div> 17. Segments Operating segments are components of an enterprise about which separate financial information is available. Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. The Company's chief operating decision maker is its chief executive officer. The Company's chief executive officer reviews financial information presented on a consolidated basis and, as a result, the Company concluded that there is only one operating and reportable segment. The Company markets its solution to companies around the world. Revenue is generally attributed to geographic areas based on the country in which the customer is domiciled. Revenue information by location is presented below (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="92%" align="center"> <tr><td width="68%"> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Three Months Ended June 30,</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="6" align="center">Six Months Ended June 30,</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Americas</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">24,800</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">12,015</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">45,773</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">21,370</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Europe</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,435</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,350</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">4,781</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5,353</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Asia</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">11,615</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">7,470</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">22,686</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">13,324</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr><td valign="top"> Total</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">38,850</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">21,835</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">73,240</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">40,047</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table> Revenue from the United States represented 64% and 62%; and from Japan represented 15% and 16% of the total revenue for the three and six months ended June 30, 2011, respectively. Revenue from the United States represented 55% and 53%; and from Japan represented 18% and 18% of the total revenue for the three and six months ended June 30, 2010, respectively. No other country represented 10% or more of revenue for the above periods. Long-lived assets information by location is presented below (in thousands):   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="76%" align="center"> <tr><td width="74%"> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="6%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">June 30, 2011</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">December 31, 2010</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> United States</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">144,580</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">127,640</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Japan</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">63</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">74</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">144,643</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">127,714</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td valign="bottom">  </td> <td> </td></tr></table></div>

9459000

5191000

19396000

11286000

349000

2936000

39304000

10707000

250180000

18. Subsequent Events In July 2011, the Company entered into a non-cancelable operating lease agreement to sublease office space located in San Francisco, California, which consists of approximately 32,000 square feet. The future minimum lease payments under the sublease totaled approximately $1.4 million. The lease expires in April 2013.

62793000

64361000

0.0001

26230000

10000000

26230000

5879000

3008000

8754000

2952000

6340000

7031000

21187000

33131000

5153000

5495000

18141000

28941000