Case: Patents/Specification & Obviousness (Fed. Cir.)

The Federal Circuit reversed in part and affirmed in part the decision of a federal district court in California that challenged claims of Sonos Inc.'s patents directed to creating and saving predefined groups of zone players to play synchronous audio, and directed to the use of a control device to transfer playback responsibility to a playback device through a mobile app are invalid, in this infringement action against Google LLC. The appeals court reversed the district court’s judgment that some patent claims are invalid for lack of written description and that two patents are unenforceable under the doctrine of prosecution ...