Mealey's (May 29, 2019, 1:00 PM EDT) -- ALEXANDRIA, Va. — In a May 28 patent owner response filed with the Patent Trial and Appeal Board, the owner of technology that purportedly solves the problem of “spoofing” — which occurs when a displayed caller ID number is not the actual number generating a phone call — maintains that its patent is not obvious (Next Caller Inc. v. TRUSTID Inc., No. IPR2019-00039, PTAB)....