(January 2, 2020, 10:41 AM EST) -- WASHINGTON, D.C. — A final written decision by the Patent Trial and Appeal Board that a patent relating to a side-by-side vehicle with a continuously variable transmission and an air inlet located on the side panel was not proven obvious by a petitioner for inter partes review (IPR) was affirmed Dec. 23 by the Federal Circuit U.S. Court of Appeals (Arctic Cat Inc. v. Polaris Industries Inc., No. 19-1440, Fed. Cir., 2019 U.S. App. LEXIS 38157)....