Russ, August & Kabat provides legal services to the Company with respect to its pending patent litigations filed in April 2014 and December 2014 against Google Inc. and YouTube, LLC in the United States District Court for the Southern District of New York relating to certain patents within the Cox Patent Portfolio acquired by the Company from Dr. Cox (see Note J[1] hereof).  The terms of the Company's agreement with Russ, August & Kabat provide for legal fees on a full contingency basis ranging from 15% to 30% of the net recovery (after deduction of expenses) depending on the stage of the proceeding in which the result (settlement or judgment) is achieved.  The Company is responsible for all of the expenses incurred with respect to this litigation.

Dovel & Luner, LLP provides legal services to the Company with respect to its patent litigation commenced in May 2013 against Apple, Inc., Microsoft, Inc. and other major vendors of document system software and computer systems in the United States District Court of Texas for the Eastern District of Texas, (Tyler Division) for infringement of U.S. Patent No. 6,006,227 (see Note J[2]).  The terms of the Company's agreement with Dovel & Luner LLP provide for legal fees on a contingency basis ranging from 25% to 40% of the net recovery (after deduction of expenses) depending upon the stage of proceeding in which a result (settlement or judgment) is achieved, subject to certain agreed upon contingency fee caps depending upon the amount of the net recovery.  The Company is responsible for a certain portion of the expenses incurred with respect to the litigation.  For the year ended December 31, 2015, the Company incurred contingent legal fees of $1,439,000 and expenses of $862,000 to Dovel & Luner with respect to the litigation.

Dovel & Luner, LLP provides legal services to the Company with respect to the Company's pending patent litigation filed in September 2011 against sixteen (16) data networking equipment manufacturers in the United States District Court for the Eastern District of Texas, (Tyler Division) (see Note J[3]).  The terms of the Company's agreement with Dovel & Luner LLP essentially provide for legal fees on a full contingency basis ranging from 12.5% to 35% (with certain exceptions) of the net recovery (after deduction for expenses) depending on the stage of the preceding in which a result (settlement or judgment) is achieved.  For the year ended December 31, 2015 and December 31, 2014, the Company incurred contingent legal fees and expenses to Dovel & Luner of $745,000 and $239,000, respectively, with respect to the litigation.

Dovel & Luner, LLP provided legal services to the Company with respect to the Company's patent litigation settled in July 2010 against several major data networking equipment manufacturers (see Note J[4]).  The terms of the Company's agreement with Dovel & Luner, LLP provided for legal fees of a maximum aggregate cash payment of $1.5 million plus a contingency fee of up to 24% (based on the settlement being achieved at the trial stage) including legal fees of local counsel in Texas.  With respect to royalty payments payable quarterly by Cisco to the Company in accordance with the Company's settlement and license agreement with Cisco, the Company has an obligation to pay Dovel & Luner 24% of such royalties received after expenses.  During the years ended December 31, 2015 and December 31, 2014, total contingency fees incurred to Dovel & Luner, LLP (including local counsel) were $2,157,000 and $2,712,000, respectively.

With respect to the Company's litigation against D-Link, which was settled in May 2007, the Company utilized the services of Blank Rome, LLP, on a full contingency basis.  In accordance with the Company's contingency fee agreement with Blank Rome LLP, once the Company recovers its expenses related to the litigation (which was recovered in the first quarter of 2013), the Company is obligated to pay legal fees to Blank Rome LLP equal to 25% of the royalty revenue received by the Company from its license agreement with D-Link.  During the years ended December 31, 2015 and December 31, 2014, the Company incurred legal fees to Blank Rome of $56,000 and $55,000, respectively.

On February 28, 2013, the Company completed the acquisition of the Cox Patent Portfolio  consisting of four patents (as well as a pending patent application) from Dr. Ingemar Cox, a technology leader in digital watermarking content identification, digital rights management and related technologies, for a purchase price of $1,000,000 in cash and 403,226 shares of the Company's common stock.  In addition, the Company is obligated to pay Dr. Cox 12.5% of the net proceeds (after deduction of expenses) generated by the Company from licensing, sale or enforcement of the patents.  Since the acquisition of the patent portfolio from Dr. Cox, the Company has been issued seven additional related patents by the USPTO comprising the Cox Patent Portfolio.  Professional fees and filing fees of $169,000 were capitalized as patent cost.

On May 21, 2013, the Company's wholly-owned subsidiary, Mirror Worlds Technologies, LLC, acquired the Mirror Worlds Patents consisting of all of the patents previously owned by Mirror Worlds, LLC (which subsequently changed its name to Looking Glass LLC), including nine issued United States patents and five pending applications (one of which was issued in November 2013) covering foundational technologies that enable unified search and indexing, displaying and archiving of documents in a computer system.  As consideration for the patent acquisition, the Company paid Mirror Worlds, LLC $3,000,000 in cash and issued 5-year warrants to purchase an aggregate of 1,750,000 shares of the Company's common stock (875,000 shares of common stock at an exercise price of $1.40 per share and 875,000 shares of common stock at an exercise price of $2.10 per share) (the "Looking Glass Warrants").  On June 3, 2014, the Company repurchased the Looking Glass Warrants from Looking Glass LLC at a cost of $505,000.  As part of the acquisition of the Mirror Worlds Patent Portfolio, the Company also entered into an agreement with Recognition Interface, LLC ("Recognition"), an entity that financed the commercialization of the patent portfolio prior to its sale to Mirror Worlds, LLC and also retained an interest in the licensing proceeds of the patent portfolio held by Mirror Worlds, LLC.  Pursuant to the terms of the Company's agreement with Recognition, Recognition received (i) 5-year warrants to purchase 250,000 shares of the Company's common  stock  at  $1.40  per  share,  and  (ii)  5-year warrants to  purchase 250,000 shares of common stock at $2.10 per share.  Recognition also received from the Company an interest in the net proceeds realized from the monetization of the Mirror Worlds Patent Portfolio as follows: (i) 10% of the first $125 million of net proceeds; (ii) 15% of the next $125 million of net proceeds; and (iii) 20% of any portion of the net proceeds in excess of $250 million.  In addition, Abacus and Associates, Inc. ("Abacus"), an investment entity affiliated with Recognition,  received  a  60-day  warrant  to  purchase  500,000  shares  of  the Company's common stock at $2.05 per share.  In accordance with the Company's agreement with Recognition, as a result of the exercise of the 60-day warrant by Abacus in July 2013 and the Company's receipt of the aggregate exercise price of $1,250,000, additional 5-year warrants to purchase an aggregate of 250,000 shares (125,000 shares at an exercise price of $2.10 per share and 125,000 shares at an exercise price of $1.40 per share) of the Company's common stock were issued to Recognition.  As part of the acquisition of the Mirror Worlds Patent Portfolio, professional fees and filing fees of $409,000 were capitalized as patent cost.

On January 18, 2005, the Company and Merlot Communications, Inc., subsequently changed its name to BAXL Technologies, Inc. (the "Seller"), amended the Patent Purchase Agreement originally entered into in November 2003 (the "Amendment") pursuant to which the Company paid an additional purchase price of $500,000 to Seller for the restructuring of future contingent payments to Seller from the licensing or sale of the patents (including the Remote Power Patent and the QoS Patents).  The Amendment provided for future contingent payments by the Company to Seller of $1.0 million upon achievement of $25 million of Net Royalties (as defined) which payment was made in 2012, an additional contingency payment of $1.0 million upon achievement of $50 million of Net Royalties the "Second Contingent Payment") and an additional contingency payment of $500,000 upon achievement of $62.5 million of Net Royalties from the licensing or sale of the patents acquired from Seller.  At December 31, 2014, $900,000 was accrued as a contingent patent cost with respect to the $1.0 million contingent payment upon achieving $50 million of Net Royalties as referenced above.  On March 11, 2015, the Company entered into an agreement with a secured creditor of the Seller, who had all rights with respect to the Second Contingent Payment, pursuant to which the Company paid the secured creditor $900,000 in full satisfaction of the second contingent payment of $1.0 million.

On November 30, 2004, the Company entered into a master services agreement (the "Agreement") with ThinkFire Services USA, Ltd. ("ThinkFire") pursuant to which ThinkFire was granted the exclusive worldwide rights (except for direct efforts by the Company and related companies) to negotiate license agreements for the Remote Power Patent with respect to certain potential licensees agreed to between the parties.  Either the Company or ThinkFire had the right to terminate the Agreement upon 60 days' notice for any reason or upon 30 days' notice in the event of a material breach.  The Company was obligated to pay ThinkFire a fee not to exceed 20% of the royalty payments received from license agreements consummated by ThinkFire on its behalf after the Company recovers its expenses.  For the year ended December 31, 2014, fees incurred to ThinkFire amounted to $105,000.  On February 10, 2015, the Company entered into an agreement with ThinkFire pursuant to which the Agreement was terminated with no further obligations in consideration of the Company's payment of $285,000 to ThinkFire ($261,000 of such payment has been included as general and administrative expenses for the year ended December 31, 2015 and the balance of $24,000 was accrued as an expense for the year ended December 31, 2014).

The Company leases its principal office space in New York City at a monthly base rent of approximately $3,700 which lease expires on May 31, 2017.

The Company entered into a lease agreement to rent office space, for offices in New Canaan, Connecticut.  In August 2015, the Company entered into an agreement to extend the lease for a four year period (expiring September 30, 2019) at a base rent of $7,000 per month for the first year (increasing $100 per month each year), which is subject to annual adjustments to reflect increases in real estate taxes and operating expenses.

Mirror Worlds Technologies, LLC, the Company's wholly-owned subsidiary, entered into a one year lease, at a base rent of $620 per month, to rent office space in Tyler, Texas (expiring April 30, 2016).

Rental expense for the years ended December 31, 2015 and 2014 aggregated $140,000 and $136,000, respectively.

The Company has a Savings and Investment Plan which allows participants to make contributions by salary reduction pursuant to Section 401(k) of the Internal Revenue Code of 1986.  The Company also may make discretionary annual matching contributions and profit sharing in amounts determined by the Board of Directors, subject to statutory limits.  The 401(k) Plan expense for the years ended December 31, 2015 and 2014 was $91,000 and $61,000, respectively.