Mealey's (December 19, 2019, 1:26 PM EST) -- WASHINGTON, D.C. — In a Dec. 17 ruling, the Federal Circuit U.S. Court of Appeals affirmed a final written decision by the Patent Trial and Appeal Board that a patented improvement to methods of human interaction with barrier movement operators, such as garage door operating systems, is anticipated by prior art (The Chamberlain Group v. One World Technologies Inc., No. 18-2112, Fed. Cir., 2019 U.S. App. LEXIS 37224)....