(February 3, 2017, 9:01 AM EST) -- ALEXANDRIA, Va. — In a ruling issued Jan. 31, the Patent Trial and Appeal Board rejected assertions by Fujitsu Network Communication Inc. that a patented cross-polarization interference canceler (XPIC) is unpatentable under the Patent Act, 35 U.S.C. § 103(a) (Fujitsu Network Communication Inc. v. Core Optical Technologies LLC, No. IPR2016-01618, PTAB)....