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Patent
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Filing Date
Decision Verdict Date
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Petitioner / Claimant (Plaintiff)
Cisco Systems, Inc.
Respondent / Defendant
Portsmouth Network Corporation
Dispute Summary
Cisco Systems has filed an IPR petition challenging the validity of Portsmouth Network Corporation's '637 Patent claims related to fast link failover systems for network communication failures. The petitioner asserts that the invention is obvious over various combinations of prior art references, primarily Mitchell.
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