The U.S. Court of Appeals for the Federal Circuit recently affirmed a decision of the Patent Trademark and Appeals Board to invalidate claims of U.S. Patent 5,812,789, which had been asserted by an Acacia-controlled, non-practicing entity, Parthenon Unified Memory Architecture LLC against handset makers Apple, Samsung, HTC, Motorola, LG, Huawei and ZTE in the Eastern District of Texas. At issue in the District Court case were nine patents directed to real-time video decoders accessing shared memory. Sidley’s trial team included Mike Bettinger, Irene Yang and Curt Holbreich. Just prior to trial, the PTAB instituted review on the five patents then remaining in the case, including the ‘789 patent. In response, the District Court stayed the case, pending the outcome of the PTAB proceedings. Sidley lawyers Joe Micallef, Curt Holbreich and Sam Dillon handled the matter before the PTAB, and prevailed in invalidating all five of the patents at issue. Parthenon appealed only the ruling on the ‘789 patent to the Federal Circuit. Sidley lawyers Ryan Morris and Curt Holbreich handled the appeal before the Federal Circuit which, on December 6, 2018, affirmed the invalidity of the ‘789 patent. Acacia, after more than four years of litigation, is now left with five invalid patents.
Sidley Secures Win Against Acacia in Federal Circuit
December 14, 2018