Mealey's (November 2, 2017, 7:55 AM EDT) -- WASHINGTON, D.C. — In an Oct. 20 appellant brief, ParkerVision Inc. urges the Federal Circuit U.S. Court of Appeals to vacate findings by the Patent Trial and Appeal Board that a wireless transmission patent is obvious, arguing that the final written decisions were based on invalidity theories not properly before the board and that ParkerVision was unable to rebut (ParkerVision Inc. v. Qualcomm Inc., No. 17-2012, Fed. Cir.)....