On June 29, 2016, Unified Patents Inc. filed a petition for inter parties review challenging the patentability of all claims of a patent owned and asserted by Uniloc Luxembourg S.A. and Uniloc USA, Inc.  The patent, U.S. Patent 8,566,960, was asserted against a number of parties on May 30, 2016, in the Eastern District of Texas.  

A copy of the filing can be found on the PTAB portal.