Pfizer Inc. v. MSN Pharmaceuticals Inc. - 1:26-cv-00873

Pfizer Inc. v. MSN Pharmaceuticals Inc. (Case No. 1:26-cv-00873), filed on Jul 16, 2026 in the District Court, D. Delaware. This case involves claims and proceedings between the parties. Explore details about the litigants, key filings, and major docket updates.

Case Details

Case Number
1:26-cv-00873
Filing Date
Jul 16, 2026
Cause of Action
-
Status
-
Court
District Court, D. Delaware
Nature of Suit
-

Parties Involved

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

NameRepresented By
MSN Pharmaceuticals Inc. -
Pfizer Inc. -
PF PRISM IMB B.V. -

Patents Involved

There is a single patent involved in this case.

Application NumberPatent Number
-US8791140B2

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 17, 2026Summons Issued as to MSN Laboratories Pvt. Ltd. on 7/17/2026; MSN Pharmaceuticals Inc. on 7/17/2026. (Attachments: # 1 Summons Issued)(mrr) (Entered: 07/17/2026)PACER Document
Jul 16, 2026Disclosure Statement pursuant to Rule 7.1: identifying Corporate Parent Pfizer Inc. for PF PRISM IMB B.V. filed by PF PRISM IMB B.V., Pfizer Inc. (mrr) (Entered: 07/17/2026)PACER Document
Jul 16, 2026Report to the Commissioner of Patents and Trademarks for Patent/Trademark Number(s) 8,791,140 B2. (mrr) (Entered: 07/17/2026)PACER Document
Jul 16, 2026Supplemental information for patent cases involving an Abbreviated New Drug Application (ANDA) - Date Patentee(s) Received Notice: 06/02/2026. Date of Expiration of Patent: 12/14/2030.Thirty Month Stay Deadline: 6/2/2028. (mrr) (Entered: 07/17/2026)PACER Document
Jul 16, 2026Notice, Consent and Referral forms re: U.S. Magistrate Judge jurisdiction. (mrr) (Entered: 07/17/2026)PACER Document
Jul 16, 2026COMPLAINT for Patent Infringement filed against MSN Laboratories Pvt. Ltd., MSN Pharmaceuticals Inc. ( Filing fee $ 405, receipt number ADEDC-5018450.) - filed by Pfizer Inc., PF PRISM IMB B.V. (Attachments: # 1 Exhibit A, # 2 Civil Cover Sheet)(mrr) (Entered: 07/17/2026)PACER Document
Jul 16, 2026COMPLAINT for Patent Infringement filed against MSN Laboratories Pvt. Ltd., MSN Pharmaceuticals Inc. ( Filing fee $ 405, receipt number ADEDC-5018450.) - filed by Pfizer Inc., PF PRISM IMB B.V. (Attachments: # 1 Exhibit A, # 2 Civil Cover Sheet)(mrr) (Entered: 07/17/2026)Attachment
Jul 16, 2026COMPLAINT for Patent Infringement filed against MSN Laboratories Pvt. Ltd., MSN Pharmaceuticals Inc. ( Filing fee $ 405, receipt number ADEDC-5018450.) - filed by Pfizer Inc., PF PRISM IMB B.V. (Attachments: # 1 Exhibit A, # 2 Civil Cover Sheet)(mrr) (Entered: 07/17/2026)Attachment