(November 18, 2016, 9:22 AM EST) -- ALEXANDRIA, Va. — The Patent Trial and Appeal Board on Nov. 15 granted a petition for inter partes review (IPR) by the federal government, deeming the U.S. Department of Justice likely to prevail on its position that several claims of a security alarm system patent are invalid (Department of Justice v. Discovery Patents LLC, No. IPR2016-01041, PTAB)....