ContentGuard Prevails In All Patent Trials Challenging The Validity Of Its Digital Rights Management Patents
PLANO, Texas, July 2, 2014 /PRNewswire/ -- ContentGuard Holdings, Inc. ("ContentGuard"), a subsidiary of Pendrell Corporation (PCO), announced today that the Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office (USPTO) issued final written decisions on June 26, 2014 and July 1, 2014 finding valid all claims of the ContentGuard digital rights management (DRM ...
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