Justin T. Arbes
37 IP cases indexed. Covers patent matters.
Cases Presided Over
37 cases indexed | Page 2 of 2
Cisco Systems, Inc. v.Portsmouth Network Corporation
Cisco Systems successfully petitioned to challenge Portsmouth Network Corporation's patent (8014394) in an IPR proceeding, leading the PTAB to institute the case. The Board found a reasonable likelihood of prevailing for several claims based on obviousness over prior art references Weyman and Li.
Cisco Systems, Inc. v.Portsmouth Network Corporation
The PTAB found the patent claims unpatentable under 35 U.S.C. § 103(a) based on various combinations of prior art references. The Petitioner successfully demonstrated that combining existing network technologies taught or rendered obvious the claimed limitations, particularly in multicast routing and packet processing.
Juniper Networks, Inc. v.Portsmouth Network Corporation
The PTAB granted institution for an IPR concerning network reconfiguration protocols, finding a reasonable likelihood of prevailing on the grounds of obviousness (103). The patent relates to methods for rapid link failure recovery in Switching/Routing Protocols (STP).
Juniper Networks, Inc. v.Portsmouth Network Corporation
The PTAB issued a Final Written Decision finding several claims of the '986 patent unpatentable under 35 U.S.C. § 103(a). The Board concluded that the combination of prior art references, including Gai and an IEEE publication, taught the full scope of the claimed network failure recovery method.
Cisco Systems Inc. v.Portsmouth Network Corporation
The PTAB found that a large group of claims (15) were unpatentable over the prior art reference Gai under 35 U.S.C. § 103(a). The Board relied on Petitioner's '1B' theory, which successfully demonstrated obviousness by showing Gai disclosed all limitations of the claimed network topology and dummy traffic function. Claims 11, 12, 23, and 24 survived the challenge.
Cisco Systems, Inc. v.Portsmouth Network Corporation
Cisco Systems successfully navigated a discretionary denial challenge at the PTAB, leading to the institution of an IPR against Portsmouth Network Corp. over network resource allocation claims. The Board found that Cisco demonstrated a reasonable likelihood of prevailing on at least one claim, despite arguments regarding prior art redundancy and pending district court litigation.
Cisco Systems, Inc. v.Portsmouth Network Corporation
The PTAB issued a Final Written Decision finding that claims 1-18 of the patent were unpatentable on grounds of obviousness over Kovvali and Kalman. The Board rejected the Petitioner's arguments, agreeing with the Patent Owner that there was no valid motivation to combine the references for resource allocation in ring topology data flow.
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