PTAB Holds Packet Filtering Claims Unpatentable in Cisco/Centripetal Networks IPR
“[A] person of ordinary skill would have understood that in both the ‘713 patent and Sourcefire, the relevant data is located in the first packet of the message . . . [and] would have been sufficiently motivated by Sourcefire to design intrusion rules with the ssl_version keyword.” On January 23, the Patent Trial and Appeal Board (PTAB) issued a final written decision in IPR2018-01437 holding all claims (1-20) of U.S. Patent No. 9,160,713 B2 (the ‘713 patent) unpatentable. The ‘713 patent, owned by Centripetal Networks, Inc. (CN), was challenged in an inter partes review (IPR) by Cisco System, Inc. (Cisco). Packet Filtering Rules The ‘713 patent relates to filtering network data transfers....
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