PatentTXED2:23-cv-00441

Portsmouth Network Corporation v. Cisco Systems, Inc.

Summary

Portsmouth Network Corporation sues Cisco Systems for infringing its patents related to network technology.

Summary generated by AI from public docket data. Verify against the original filing before relying on it.

Counsel of record

For the plaintiff
For the defendant
Court
TXED
Docket no.
2:23-cv-00441
Nature of suit
Patent
Filed
2023-09-26
Last filing
2025-05-16

Cause

35:271 Patent Infringement

Entities in this case

Parties

Cisco Systems, Inc. Portsmouth Network Corporation David Keyzer

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View on CourtListener →Open in feed →Last updated 2026-05-19