Google filed a complaint for declaratory judgment against ContentGuard, a subsidiary of Pendrell Corporation (4:14cv00498). The Google suit was filed in response to ContentGuard’s litigation campaign against makers of mobile handsets that use Google’s media applications. Google is seeking a declaratory judgment that its applications do not infringe ContentGuard’s digital rights patents (6,963,859, 7,523,072, 7,774,280, 8,001,053, 7,269,576, 8,370,956, 8,393,007, 7,225,160, 8,583,556).  ContentGuard sued device makers Amazon, Apple, BlackBerry, Motorola, and Samsung  in December 2013.  (2:14cv00061). 01/31, Northern District of California, 4:14cv00498