IP Verse

Quantefi Corp. v. Belden Inc. - 4:26-cv-01345

Quantefi Corp. v. Belden Inc. (Case No. 4:26-cv-01345), filed on Aug 21, 2026 in the District Court, E.D. Missouri 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
4:26-cv-01345
Filing Date
Aug 21, 2026
Cause of Action
Patent Infringement
Status
-
Court
District Court, E.D. Missouri
Nature of Suit
Patent

Parties Involved

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

NameRepresented By
Quantefi Corp. -
Belden Inc. -

Patents Involved

Patents not found - set an alert to get notified when patents are added.

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

Aug 21, 2026COMPLAINT For Patent Infringement against defendant Belden Inc. with receipt number AMOEDC-12044389, in the amount of $405 Jury Demand,, filed by Quantefi Corp.. (Attachments: # 1 Exhibit Ex. 1, # 2 Exhibit Ex. 2, # 3 Exhibit Ex. 3, # 4 Exhibit Ex. 4, # 5 Civil Cover Sheet Civil Cover Sheet, # 6 Original Filing Form Original Filing Form)(St. Onge, Britton) (Entered: 08/21/2026)PACER Document
Aug 21, 2026DISCLOSURE STATEMENT by Quantefi Corp.. No corporate parents or affiliates identified. (St. Onge, Britton) (Entered: 08/21/2026)PACER Document
Aug 21, 2026NOTICE OF PROCESS SERVER by Plaintiff Quantefi Corp. Process Server: HPS Process Service & Investigations (Attachments: # 1 Summons Summons)(St. Onge, Britton) (Entered: 08/21/2026)PACER Document
Aug 21, 2026NOTICE by Plaintiff Quantefi Corp. Report to Director of the U.S. Patent and Trademark Office of filing or determination of an action regarding trademark (St. Onge, Britton) (Entered: 08/21/2026)PACER Document
Aug 21, 2026COMPLAINT For Patent Infringement against defendant Belden Inc. with receipt number AMOEDC-12044389, in the amount of $405 Jury Demand,, filed by Quantefi Corp.. (Attachments: # 1 Exhibit Ex. 1, # 2 Exhibit Ex. 2, # 3 Exhibit Ex. 3, # 4 Exhibit Ex. 4, # 5 Civil Cover Sheet Civil Cover Sheet, # 6 Original Filing Form Original Filing Form)(St. Onge, Britton) (Entered: 08/21/2026)Attachment
Aug 21, 2026COMPLAINT For Patent Infringement against defendant Belden Inc. with receipt number AMOEDC-12044389, in the amount of $405 Jury Demand,, filed by Quantefi Corp.. (Attachments: # 1 Exhibit Ex. 1, # 2 Exhibit Ex. 2, # 3 Exhibit Ex. 3, # 4 Exhibit Ex. 4, # 5 Civil Cover Sheet Civil Cover Sheet, # 6 Original Filing Form Original Filing Form)(St. Onge, Britton) (Entered: 08/21/2026)Attachment
Aug 21, 2026COMPLAINT For Patent Infringement against defendant Belden Inc. with receipt number AMOEDC-12044389, in the amount of $405 Jury Demand,, filed by Quantefi Corp.. (Attachments: # 1 Exhibit Ex. 1, # 2 Exhibit Ex. 2, # 3 Exhibit Ex. 3, # 4 Exhibit Ex. 4, # 5 Civil Cover Sheet Civil Cover Sheet, # 6 Original Filing Form Original Filing Form)(St. Onge, Britton) (Entered: 08/21/2026)Attachment
Aug 21, 2026COMPLAINT For Patent Infringement against defendant Belden Inc. with receipt number AMOEDC-12044389, in the amount of $405 Jury Demand,, filed by Quantefi Corp.. (Attachments: # 1 Exhibit Ex. 1, # 2 Exhibit Ex. 2, # 3 Exhibit Ex. 3, # 4 Exhibit Ex. 4, # 5 Civil Cover Sheet Civil Cover Sheet, # 6 Original Filing Form Original Filing Form)(St. Onge, Britton) (Entered: 08/21/2026)Attachment
Aug 21, 2026COMPLAINT For Patent Infringement against defendant Belden Inc. with receipt number AMOEDC-12044389, in the amount of $405 Jury Demand,, filed by Quantefi Corp.. (Attachments: # 1 Exhibit Ex. 1, # 2 Exhibit Ex. 2, # 3 Exhibit Ex. 3, # 4 Exhibit Ex. 4, # 5 Civil Cover Sheet Civil Cover Sheet, # 6 Original Filing Form Original Filing Form)(St. Onge, Britton) (Entered: 08/21/2026)Attachment
Aug 21, 2026COMPLAINT For Patent Infringement against defendant Belden Inc. with receipt number AMOEDC-12044389, in the amount of $405 Jury Demand,, filed by Quantefi Corp.. (Attachments: # 1 Exhibit Ex. 1, # 2 Exhibit Ex. 2, # 3 Exhibit Ex. 3, # 4 Exhibit Ex. 4, # 5 Civil Cover Sheet Civil Cover Sheet, # 6 Original Filing Form Original Filing Form)(St. Onge, Britton) (Entered: 08/21/2026)Attachment
Aug 24, 2026REPORT to Commissioner of filing or determination of an action regarding patent. (JKL) (Entered: 08/24/2026)PACER Document
Aug 24, 2026Case Opening Notification. Judge Assigned: Honorable Shirley P. Mensah. 1 Summons(es) issued and emailed to Attorney Britton Laurence St. Onge. All parties must file the Notice Regarding Magistrate Judge Jurisdiction Form consenting to or opting out of the Magistrate Judge jurisdiction. Click here for the instructions. Pursuant to Local Rule 2.09, every nongovernmental corporate party or nongovernmental corporation that seeks to intervene in any case, and every party or intervenor in an action in which jurisdiction is based upon diversity, must file a Disclosure Statement immediately upon entering its appearance in the case. Please complete and file the certificate as soon as possible. (moed-0001.pdf). (JKL)PACER Document