Mealey's (November 30, 2020, 1:10 PM EST) -- WASHINGTON, D.C. — In a Nov. 25 ruling, the Federal Circuit U.S. Court of Appeals found no error in a determination by the Patent Trial and Appeal Board that a book first published in 2011 qualifies as a printed publication for purposes of serving as relevant prior art in an inter partes review (IPR) (VidStream LLC v. Twitter Inc., Nos. 2019-1734, -1735, Fed. Cir., 2020 U.S. App. LEXIS 37201)....