Kenyon and clients Fisher-Price, Inc. and Mattel, Inc. prevailed at the Court of Appeals for the Federal Circuit in that court's first application of the obviousness standard since the Supreme Court's April 30, 2007 decision in KSR Int'l Co. v.Teleflex Inc. The Federal Circuit affirmed a ruling by the US District Court for the District of Delaware that Fisher-Price’s PowerTouch System, which helps children learn to read through phonics, does not infringe a patent owned by LeapFrog Enterprises, Inc., and that the asserted claim of the patent is invalid for obviousness. Case number 485 F.3d 1157 (2007).