Mealey's (April 17, 2018, 11:34 AM EDT) -- ALEXANDRIA, Va. — Cisco Systems Inc. prevailed April 16 in an inter partes review (IPR) of a Uniloc USA Inc. patent relating to the use of an instant messaging (IM) connection to initiate a conference call, when the Patent Trial and Appeal Board agreed that 15 claims of the patent would have been obvious to a person of skill in the art (Cisco Systems Inc. v. Uniloc USA Inc., No. IPR2017-00198, PTAB)....