Mealey's (November 20, 2020, 11:15 AM EST) -- WASHINGTON, D.C. — A determination by the Patent Trial and Appeal Board that three claims of a gaming patent recite patent-eligible subject matter was affirmed Nov. 19 by the Federal Circuit U.S. Court of Appeals (GREE Inc. v. Supercell Oy, Nos. 2019-1864, -1960, Fed. Cir., 2020 U.S. App. LEXIS 36425)....