Portsmouth Network Corporation v. Cisco Systems, Inc.

Summary

Portsmouth Network Corporation is suing Cisco Systems for patent infringement. The lawsuit centers on patent claims related to network technology. The case involves allegations that Cisco's products or services infringe Portsmouth's patented innovations in networking.

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

Coverage vs reality meter

Cause

35:271 Patent Infringement

Entities in this case

Parties

Cisco Systems, Inc. Portsmouth Network Corporation

Docket entries

1. #62026-09-03

   NOTICE of Designation of Attorney in Charge to James R Nuttall on behalf of Portsmouth Network Corporation (Nuttall, James) (Entered: 09/03/2026)

2. #52026-09-03

   Summons issued as to Cisco Systems, Inc.. (mdj) (Entered: 09/03/2026)

3. #42026-09-03

   Notice of Filing of Patent/Trademark Form (AO 120). AO 120 emailed to the Director of the U.S. Patent and Trademark Office. (Henry, Claire) (Entered: 09/03/2026)

4. #32026-09-03

   DEMAND for Trial by Jury by Portsmouth Network Corporation. (Henry, Claire) (Entered: 09/03/2026)

5. #22026-09-03

   Fed. R. Civ. P. 7.1(a)(1) Disclosure Statement filed by Portsmouth Network Corporation (Henry, Claire) (Entered: 09/03/2026)

6. #12026-09-03

   COMPLAINT against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11777670.), filed by Portsmouth Network Corporation. (Attachments: # 1 Exhibit 1 - '279 Patent, # 2 Exhibit 2 - '899 Patent, # 3 Exhibit 3 - '922 Patent, # 4 Exhibit 4 - '930 Patent, # 5 Exhibit 5 - '508 Patent, # 6 Exhibit 6 - '637 Patent, # 7 Exhibit 7 - Claim Chart, # 8 Exhibit 8 - Claim Chart, # 9 Exhibit 9 - Claim Chart, # 10 Exhibit 10 - Claim Chart, # 11 Exhibit 11 - Claim Chart, # 12 Exhibit 12 - Claim Chart, # 13 Exhibit 13, # 14 Exhibit 14, # 15 Exhibit 15, # 16 Exhibit 16, # 17 Exhibit 17, # 18 Exhibit 18, # 19 Exhibit 19, # 20 Exhibit 20, # 21 Exhibit 21, # 22 Exhibit 22, # 23 Exhibit 23, # 24 Exhibit 24, # 25 Exhibit 25, # 26 Exhibit 26, # 27 Exhibit 27, # 28 Exhibit 28, # 29 Exhibit 29, # 30 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Henry, Claire) (Entered: 09/03/2026)

7. 2026-09-03

   Case: Portsmouth Network Corporation v. Cisco Systems, Inc. was filed on 09/03/2026 and assigned to Judge Gilstrap. The Notice Regarding Consent to Proceed Before Magistrate Judge form is attached. (mdj)

8. 2026-09-03

   Clerk's New Suit Notice

9. 2026-09-03

   Case Assigned/Reassigned

10. 2026-09-03

    Case assigned to District Judge Rodney Gilstrap. (mdj)

Docket history from CourtListener/RECAP — most recent first.