( May 26, 2026, 11:50 AM EDT) -- WASHINGTON, D.C. — A Federal Circuit U.S. Court of Appeals panel on May 22 held that the U.S. Patent Trial and Appeal Board (PTAB) correctly held that a patent describing a computerized roof measuring tool was invalid as obvious, further upholding the PTAB’s conclusion that the patent would still have been under the appellant entity’s preferred claim construction of a disputed claim phrase....