(January 3, 2019, 2:29 PM EST) -- ALEXANDRIA, Va. — ZTE USA Inc. maintains before the Patent Trial and Appeal Board in a Jan. 2 petition that a SEVEN Networks LLC patent that claims a mobile device with a power-management mode would have been obvious to a person of skill in the art (POSITA) (ZTE USA Inc. v. SEVEN Networks LLC, No. IPR2019-00461, PTAB)....