(December 12, 2016, 9:36 AM EST) -- WASHINGTON, D.C. — In a trio of decisions released Dec. 9, the Federal Circuit U.S. Court of Appeals agreed with the Patent Trial and Appeal Board (PTAB) that various claims of four patents directed to establishing secure communications between multiple network devices for video and audio data transmission are unpatentable (VirnetX Inc. v. Apple Inc., Nos. 15-1934, -1935, Fed. Cir.)....