On October 26, 2017, Unified filed a petition for inter partes review (IPR) against U.S. Patent 8,902,770 owned and asserted by Cellular Communications Equipment LLC, an Acacia Research subsidiary and well-known NPE. The '770 patent, directed to a method for “explicit signaling between a network and the user equipment,” has been asserted in district litigation against such companies as Apple, ZTE, AT&T, Verizon, Sprint, Boost Mobile, and T-Mobile.

To read the petition and view the entire case proceeding, see our PTAB Portal.