Mealey's (June 19, 2020, 1:29 PM EDT) -- WASHINGTON, D.C. — Four final written decisions by the Patent Trial and Appeal Board that canceled as obvious various claims of two patents directed to networked shared, interactive applications — such as video games — were affirmed June 16 by the Federal Circuit U.S. Court of Appeals (PalTalk Holdings Inc. v. Riot Games Inc., No. 19-2035, Fed. Cir., 2020 U.S. App. LEXIS 18897)....