Communication Networks — US PTAB Patent Cases
4 decisions indexed
Page 1 of 1 · 4 total
Cisco Systems, Inc. v.Portsmouth Network Corporation
The PTAB denied institution for Cisco Systems' IPR against Portsmouth Network Corporation regarding network failover methods. The Board found that the petitioner failed to demonstrate a reasonable likelihood of prevailing over the prior art, specifically Mitchell.
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.
Arista Networks, Inc. v.Orckit Corporation
The PTAB denied Arista Networks' petition to review Orckit Corporation's patent (7545740) because the arguments and prior art were substantially identical to those previously presented in related IPR proceedings.
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