On June 1, 2018, Unified filed a petition for inter partes review (IPR) against U.S. Patent 8,014,284 owned and asserted by Barkan Wireless IP Holdings, LP, an NPE. The '248 patent, directed to an “add-on base station” in a cellular network, has been asserted in district court litigation against Verizon and Samsung. 

View Barkan Wireless' district court litigation here. To read the petition and view the entire case proceeding, see our PTAB Portal.