Federal Circuit Vacates in Part, Affirms in Part PTAB Ruling in Cisco IPR

Federal Circuit vacated in part, affirmed in part PTAB's final written decision in Zilkr Cloud Technologies v. Cisco Systems IPR proceeding. PTAB had found Zilkr's patent claims unpatentable as obvious over prior art combination. Federal Circuit agreed with Zilkr that PTAB misconstrued "request to provision" and "activate" terms, limiting them to adding new services only. Court affirmed PTAB's "utilized by" construction and substantial evidence finding. Case remanded for further proceedings under corrected claim construction.