Mealey's (October 7, 2019, 12:48 PM EDT) -- WASHINGTON, D.C. — In a case in which the federal government intervened to defend the constitutionality of the inter partes review (IPR) procedure, the Federal Circuit U.S. Court of Appeals on Oct. 4 endorsed a finding by the Patent Trial and Appeal Board that a data transmission patent is unpatentable as obvious (Evolved Wireless Inc. v. ZTE USA Inc., et al., Nos. 18-2008, 18-2009, 18-2010, 18-2011, Fed. Cir.)....