Mealey's (January 19, 2017, 8:42 AM EST) -- ALEXANDRIA, Va. — Just three months after seeking inter partes review (IPR) by the Patent Trial and Appeal Board of a media delivery patent, Facebook Inc. and Instagram LLC on Jan. 15 filed a second petition for IPR of the same patent (Facebook Inc., et al. v. Skky LLC, No. IPR2017-00688, PTAB)....