Mealey's (July 1, 2019, 2:25 PM EDT) -- WASHINGTON, D.C. — A rejection by the Patent Trial and Appeal Board of a challenge to a pre-lit artificial tree patent was vacated and remanded by the Federal Circuit U.S. Court of Appeals on July 1 (Polygroup Limited MCO v. Willis Electric Co. Ltd., No. 18-2137, Fed. Cir.)....