Mealey's (November 14, 2019, 9:17 AM EST) -- WASHINGTON, D.C. — In a Nov. 13 summary affirmance, the Federal Circuit U.S. Court of Appeals left intact findings by the Patent Trial and Appeal Board that a voltage regulator patent challenged by Intel Corp. is unpatentable as obvious (R2 Semiconductor Inc. v. Intel Corporation, Nos. 19-1031, -1031, -1032, -1033, -1034, -1036, -1037, Fed. Cir.)....