DTL Settles Lawsuit with Cingular and AT&T Mobility and Licenses Key Cell Phone Patent General Patent Corporation International Acts as Licensing Agent

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General Patent Corporation International (GPCI), a leading patent licensing and enforcement firm, announced today on behalf of its client, Digital Technology Licensing LLC (DTL), that it has settled its patent infringement lawsuits against Cingular Wireless and AT&T Mobility.

General Patent Corporation International (GPCI), a leading patent licensing and enforcement firm, announced today on behalf of its client, Digital Technology Licensing LLC (DTL), that it has settled its patent infringement lawsuits against Cingular Wireless and AT&T Mobility.

The lawsuit against Cingular Wireless was filed in April 2006 in the Eastern District of Texas (2:06 CV 156) for the infringement of DTL's U.S. Patent No. 5,051,799 ('799 Patent) by GSM cellular telephone systems and services. A second lawsuit was filed against AT&T Mobility (formerly known as Cingular Wireless) in November of 2007 in the District of New Jersey for the infringement of the '799 Patent by UMTS cellular services. Both lawsuits have been settled, and AT&T Mobility has licensed the '799 Patent.

"The settlement with AT&T Mobility and Cingular follows licensing deals with Nokia, Ericson and Samsung," said Alexander Poltorak, GPCI's Chairman & CEO. He continued, "This latest agreement is with the largest cell phone service provider in the US."

DTL owns U.S. Patent No. 5,051,799 titled "Digital Output Transducer." DTL believes that the technology covered by this patent is used in Adaptive Multi-Rate (AMR) codec and other cellular communication standards including GSM and UMTS. The patented technology is also used to assure backward compatibility of cell phone handsets and base stations.

GPCI represents DTL in the licensing and enforcement of the Patent. DTL has also brought patent infringement suits against Verizon Wireless, T-Mobile, Sprint and other companies.

"We are pleased to have been able to reach an amicable settled with Cingular," said Paul Lerner, GPCI's General Counsel. "Now we can focus on licensing the rest of the industry."

Digital Technology Licensing has been represented by the law firm of Lerner, David, Littenberg, Krumholz & Mentlik, LLP (LDLKM), a well-known patent litigation boutique. LDLKM also represents DTL in related lawsuits against Verizon Wireless, T-Mobile, Sprint/Nextel and Motorola.

"After litigating this case for almost two years we were all ready to go to trial," said Stephen Roth of LDLKM, a lead counsel in both cases. "We settled this case a week before the jury selection."

Digital Technologies Licensing LLC

Digital Technology Licensing LLC (DTL), of Suffern, N.Y., is the owner of U.S. Patent No. 5,051,799 titled "Digital Output Transducer." DTL is a portfolio company of an idea incubator affiliated with IP Holdings LLC, and is managed by GPCI. A non-exclusive license under the patent is available on reasonable and non-discriminatory terms. For licensing terms, please contact Paul Lerner at (845) 368-4000 x104. For more information, please visit http://www.digitaltechnologylicensing.com.

About General Patent Corporation International

General Patent Corporation International (GPCI) is a premier intellectual property (IP) licensing and enforcement firm headquartered in Suffern, N.Y. GPCI is the managing member and the exclusive licensing agent of DTL. GPCI represents clients in IP assertive licensing and enforcement matters on a contingency basis and assists IP owners in enforcing their IP rights through patent, trademark and copyright infringement litigation. GPCI is the oldest contingency IP enforcement organization in the United States. General Patent Corporation (GPC) is an affiliate of GPCI providing IP management consulting with a focus on IP strategy and valuation (see http://www.generalpatent.com). For more information on GPCI, please visit http://www.patentclaim.com.

About IP Holdings LLC

IP Holdings LLC, another affiliate of GPCI, is an IP-centric merchant banking organization. IP Holdings provides IP-related financial services as well as IP brokerage services. IP Holdings also operates an idea incubator. DTL is a portfolio company of IP Holdings idea incubator. For more information on IP Holdings visit http://www.ip-holdings.com.

For further information on DTL, GPCI, GPC and IP Holdings contact General Patent Corporation International, Montebello Park, Suffern, NY 10901-3740; telephone: (845) 368-4000; e-mail: info @ gpci.com.

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VALERIA POLTORAK
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