(June 19, 2024, 2:48 PM EDT) -- WASHINGTON, D.C. — The Patent Trial and Appeal Board (PTAB) used an erroneous claim construction in rejecting an obviousness challenge filed by television manufacturer Roku Inc., which was sued for allegedly infringing upon a patent for enhanced appliance control methods, the Federal Circuit U.S. Court of Appeals found June 18 in vacating PTAB’s final written decision (FWD)....