(February 22, 2019, 3:48 PM EST) -- WASHINGTON, D.C. — The Patent Trial and Appeal Board was led “astray” by an expert for Intel Corp. who offered decisional hindsight for the motivation to find various patent claim limitations during inter partes review (IPR), a patent owner recently told the Federal Circuit U.S. Court of Appeals (R2 Semiconductor Inc. v. Intel Corporation, No. 19-1031, Fed. Cir.)....