Litigation

Centripetal Networks, LLC v. Cisco Systems, Inc.

Administratively closed, pending appeal

2:18-cv-00094 (EWH)

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Filed
2018-02-13
Terminated
2025-07

Patents at issue (1)

Defender signal. Patent 9917856 has had claims invalidated at PTAB. Those final written decisions are public record and a ready-made § 102 / § 103 ground in district court. See IPR estoppel for what carries over.

99178563 PTAB invalidations

Summary

Initially, a judgment was issued in favor of Centripetal Networks finding Cisco willfully infringed four patents, including US9917856. This verdict was later vacated by the Federal Circuit due to a conflict of interest, and the case was remanded. The district court administratively closed the case in July 2025, pending appeals.

Case overview & background

Plain-language overview of the case: parties, accused product, patents at issue, and why the suit matters.

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Key legal developments & outcome

Major rulings, motions, claim construction, settlements, and the present posture or final disposition.

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Plaintiff representatives

Counsel of record for the plaintiff(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).

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Defendant representatives

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