IP Verse

Proxense, LLC v. Cisco Systems, Inc. - 2:26-cv-00602

Proxense, LLC v. Cisco Systems, Inc. (Case No. 2:26-cv-00602), filed on Jul 22, 2026 in the District Court, E.D. Texas involving patent infringement. This case involves patent infringement claims between the parties. Explore details about the litigants, key filings, and major docket updates.

Case Details

Case Number
2:26-cv-00602
Filing Date
Jul 22, 2026
Cause of Action
Patent Infringement
Status
-
Court
District Court, E.D. Texas
Nature of Suit
Patent

Parties Involved

The following parties are involved in this case, with their respective legal representatives for the case.

NameRepresented By
Proxense, LLC -
Cisco Systems, Inc. -

Patents Involved

This case involves 4 patents, each of which is central to the dispute. These patents may be subject to claims of infringement, challenges to their validity, or other issues concerning their scope and enforcement.

Application NumberPatent Number
-US8036152B2
-US8219129B2
-US9265043B2
-US8457672B2

Docket Entries

The Docket Entries section provides a chronological list of all significant filings and court actions in this case.

DateDocket EntryType

Set alerts for critical docket entry

Jul 22, 2026Fed. R. Civ. P. 7.1(a)(1) Disclosure Statement filed by Proxense, LLC (Hecht, David) (Entered: 07/22/2026)PACER Document
Jul 22, 2026Notice of Filing of Patent/Trademark Form (AO 120). AO 120 emailed to the Director of the U.S. Patent and Trademark Office. (Hecht, David) (Entered: 07/22/2026)PACER Document
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)PACER Document
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)Attachment
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)Attachment
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)Attachment
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)Attachment
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)Attachment
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)Attachment
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)Attachment
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)Attachment
Jul 22, 2026COMPLAINT for Patent Infringement against Cisco Systems, Inc. ( Filing fee $ 405 receipt number ATXEDC-11684328.), filed by Proxense, LLC. (Attachments: # 1 Exhibit 1 - U.S. Patent No. 8,219,129, # 2 Exhibit 2 - U.S. Patent No. 8,457,672, # 3 Exhibit 3 - U.S. Patent No. 9,265,043, # 4 Exhibit 4 - U.S. Patent No. 8,036,152, # 5 Exhibit 5 - 129 Claim Chart, # 6 Exhibit 6 - 672 Claim Chart, # 7 Exhibit 7 - 043 Claim Chart, # 8 Exhibit 8 - 152 Claim Chart, # 9 Civil Cover Sheet) (Counsel is reminded to file form required by LR CV-4(a).)(Hecht, David) (Entered: 07/22/2026)Attachment