Mealey's (May 23, 2019, 11:09 AM EDT) -- WASHINGTON, D.C. — A final written decision by the Patent Trial and Appeal Board that declared two claims of a Sony Corp. patent invalid was vacated and remanded May 22 by a divided Federal Circuit U.S. Court of Appeals (Sony Corporation v. Andrei Iancu, No. 18-1172, Fed. Cir.)....