[1] In September 2011, the Company initiated patent litigation against sixteen (16) data networking equipment manufacturers in the United States District Court for the Eastern District of Texas, Tyler Division, for infringement of its Remote Power Patent. Named as defendants in the lawsuit, excluding related parties, were Alcatel-Lucent USA, Inc., Allied Telesis, Inc., Avaya Inc., AXIS Communications Inc., Dell, Inc., GarrettCom, Inc., Hewlett-Packard Company, Huawei Technologies USA, Juniper Networks, Inc., Motorola Solutions, Inc., NEC Corporation, Polycom Inc., Samsung Electronics Co., Ltd., ShoreTel, Inc., Sony Electronics, Inc., and Transition Networks, Inc. The Company seeks monetary damages based upon reasonable royalties. During the year ended December 31, 2012, the Company reached settlement agreements with defendants Motorola Solutions, Inc. ("Motorola"), Transition Networks, Inc. ("Transition Networks") and GarretCom, Inc. (“GarretCom”). In February 2013, the Company reached settlement agreements with Allied Telesis, Inc. (“Allied Telesis”) and NEC Corporation (“NEC”). As part of the settlements, Motorola, Transition Networks, GarretCom, Allied Telesis and NEC each entered into a non-exclusive license agreement for the Company’s Remote Power Patent pursuant to which each such defendant agreed to license the Remote Power Patent for its full term (which expires in March 2020) and pay a license initiation fee and quarterly or annual royalties based on their sales of PoE products. On January 25, 2013, certain defendants filed a motion to stay the litigation pending completion or termination of the Inter Partes Review proceedings pending at the United States Patent and Trademark Office (see Note D(5) hereof). On March 5, 2013, the Court granted defendants’ motion and stayed the litigation pending the disposition of the Inter Partes Review proceedings.

[2] On May 23, 2013, the Company’s newly formed subsidiary (Mirror Worlds Technologies, LLC) initiated patent litigation in the United States District Court for the Eastern District of Texas, Tyler Division, against Apple, Inc., Microsoft, Inc., Hewlett-Packard Company, Lenovo Group Ltd., Lenovo (United States), Inc., Dell, Inc., Best Buy Co., Inc., Samsung Electronics America, Inc. and Samsung Telecommunications America L.L.C., for infringement of the ‘227 Patent (one of the patents the Company acquired as part of the Mirror Worlds patent portfolio – See Note B[2] to the Company’s financial statements included in this quarterly report). The Company seeks, among other things, monetary damages based upon reasonable royalties. The lawsuit alleges that the defendants have infringed and continue to infringe the claims of the ‘227 Patent by making, selling, offering to sell and using infringing products including Mac OS and Windows operating systems and personal computers and tablets that include versions of those operating systems, and by encouraging others to make, sell, and use these products.

[3] In July 2010, the Company settled its patent litigation pending in the United States District Court for the Eastern District of Texas, Tyler Division, against Adtran, Inc, Cisco Systems, Inc. and Cisco-Linksys, LLC, (collectively, “Cisco”), Enterasys Networks, Inc., Extreme Networks, Inc., Foundry Networks, Inc., and 3Com Corporation, Inc. As part of the settlement, Adtran, Cisco, Enterasys, Extreme Networks and Foundry Networks each entered into a settlement agreement with the Company and entered into non-exclusive licenses for the Company’s Remote Power Patent (the “Licensed Defendants”). Under the terms of the licenses, the Licensed Defendants paid the Company aggregate upfront payments of approximately $32 million and also agreed to license the Remote Power Patent for its full term, which expires in March 2020. In accordance with the Settlement and License Agreement, dated May 25, 2011, which expanded upon the July 2010 agreement, Cisco is obliged to pay the Company royalties (which began in the first quarter of 2011) based on its sales of PoE products up to maximum royalty payments per year of $8 million through 2015 and $9 million per year thereafter for the remaining term of the patent. The royalty payments are subject to certain conditions including the continued validity of the Company’s Remote Power Patent, and the actual royalty amounts received may be less than the caps stated above, as was the case in 2012 and 2011. Under the terms of the agreement, if the Company grants other licenses with lower royalty rates to third parties (as defined in the agreement), Cisco shall be entitled to the benefit of the lower royalty rates provided it agrees to the material terms of such other license. Under the terms of the agreement, the Company has certain obligations to Cisco and if it materially breaches such terms, Cisco will be entitled to stop paying royalties to the Company. Such a breach of the agreement by the Company would have a material adverse effect on the Company’s business, financial condition and results of operations.

[4] On July 20, 2012, an unknown third party filed with the United States Patent and Trademark Office (USPTO) a request for an Ex Parte Reexamination, requesting that our Remote Power Patent be reexamined by the USPTO. The request for reexamination was stayed on December 21, 2012 pending the termination or completion of the Inter Partes Review proceedings described in Note D[5] below. The initial grant of the reexamination by USPTO is not unusual as the majority of such applications are initially granted by USPTO. While the Company believes that the reexamination proceeding will further validate and strengthen the Remote Power Patent, should the USPTO reach a final determination that the Remote Power Patent is invalid (unless overturned by the USPTO’s Board of Patent Appeals and Interference or the United States Court of Appeals for the Federal Circuit), such a determination would have a material adverse effect on the Company as its entire current revenue stream is dependent upon the continued validity of our Remote Power Patent.

[5] At September 30, 2013, Avaya Inc., Dell Inc., Sony Corporation of America and Hewlett Packard Co. were petitioners in Inter Partes Review proceedings (which have been joined together) (the “IPR Proceeding”) pending at the United States Patent and Trademark Office before the Patent Trial and Appeal Board (the “Patent Board”) involving our Remote Power Patent. The IPR Proceeding is scheduled for a trial before the Patent Board on January 17, 2014. In the event that the Patent Board reaches a final determination in the IPR proceedings that certain of the Company’s claims related to the Remote Power Patent are unpatentable, such a determination (unless overturned by the United States Court of Appeals for the Federal Circuit) would have a material adverse effect on the Company’s business, financial condition and results of operations as the Company’s entire current revenue stream is dependent upon the continued validity of the Company’s Remote Power Patent.