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Regeneron Pharmaceuticals, Inc. v. Amgen Inc. - 1:25cv00074

Explore the details of the Regeneron Pharmaceuticals, Inc. v. Amgen Inc. case under case number 1:25cv00074 involving a cause of action for Patent Infringement. Review key information about the parties involved, the patents in question, and the docket entries.

Case Details

Case Number
1:25cv00074
Filing Date
Jul 31, 2025
Cause of Action
Patent Infringement
Status
-
Case Link
View Case
Nature of Suit
Patent

Parties Involved in the Case

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

NameRepresented By
Amgen Inc. -
Regeneron Pharmaceuticals, Inc. -

Patents Involved in the Case

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

Jul 2, 2025ORDER by Judge Michael W. Fitzgerald: granting 50 Non-Resident Attorney Christopher M. Pepe APPLICATION to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc., designating Matthew Umhofer as local counsel. THERE IS NO PDF ASSOCIATED WITH THIS ENTRY(aus) [Transferred from California Central on 7/31/2025.] (Entered: 07/02/2025)PACER Document
Jul 2, 2025ORDER by Judge Michael W. Fitzgerald: granting 51 Non-Resident Attorney Priyata Y. Patel APPLICATION to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc., designating Matthew Umhofer as local counsel. THERE IS NO PDF ASSOCIATED WITH THIS ENTRY(aus) [Transferred from California Central on 7/31/2025.] (Entered: 07/02/2025)PACER Document
Jul 2, 2025ORDER by Judge Michael W. Fitzgerald: granting 52 Non-Resident Attorney Ellen E. Oberwetter APPLICATION to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc., designating Matthew Umhofer as local counsel. THERE IS NO PDF ASSOCIATED WITH THIS ENTRY(aus) [Transferred from California Central on 7/31/2025.] (Entered: 07/02/2025)PACER Document
Jul 2, 2025ORDER by Judge Michael W. Fitzgerald: granting 53 Non-Resident Attorney Teagan J. Gregory APPLICATION to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc., designating Matthew Umhofer as local counsel. THERE IS NO PDF ASSOCIATED WITH THIS ENTRY(aus) [Transferred from California Central on 7/31/2025.] (Entered: 07/02/2025)PACER Document
Jul 2, 2025NOTICE of Deficiency in Electronically Filed Pro Hac Vice Application RE: APPLICATION of Non-Resident Attorney Arthur J. Argall III to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc. (Pro Hac Vice Fee - $500 Fee Paid, Receipt No. ACACDC-40014982) 54 . The following error(s) was/were found: Local Rule 83-2.1.3.3(d) Certificate of Good Standing not attached for every state court listed to which the applicant has been admitted. (aus) [Transferred from California Central on 7/31/2025.] (Entered: 07/02/2025)PACER Document
Jul 2, 2025ORDER by Judge Michael W. Fitzgerald: granting 55 Non-Resident Attorney Rhochelle Krawetz APPLICATION to Appear Pro Hac Vice on behalf of Rhochelle Krawetz, designating Matthew Umhofer as local counsel. THERE IS NO PDF ASSOCIATED WITH THIS ENTRY(aus) [Transferred from California Central on 7/31/2025.] (Entered: 07/02/2025)PACER Document
Jul 2, 2025ORDER by Judge Michael W. Fitzgerald: granting 56 Non-Resident Attorney Jennalee Beazley APPLICATION to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc., designating Matthew Umhofer as local counsel. THERE IS NO PDF ASSOCIATED WITH THIS ENTRY(aus) [Transferred from California Central on 7/31/2025.] (Entered: 07/02/2025)PACER Document
Jul 3, 2025ORDER RE TRANSFER PURSUANT to this Court's General Order in the Matter of Assignment of Cases and Duties to the District Judges. Related Case- filed. Related Case No: 2:24-cv-00264-JWH (Ex). Case transferred from Judge Michael W. Fitzgerald and Magistrate Judge Alka Sagar to Judge John W. Holcomb and Magistrate Judge Charles F. Eick for all further proceedings. The case number will now reflect the initials of the transferee Judge 2:25-cv-05499-JWH (Ex). Signed by Judge John W. Holcomb. (et) [Transferred from California Central on 7/31/2025.] (Entered: 07/03/2025)PACER Document
Jul 3, 2025Notice of Appearance or Withdrawal of Counsel: for attorney David M. Stein counsel for Defendant Amgen Inc.. Adding David Stein as counsel of record for Amgen Inc. for the reason indicated in the G-123 Notice. Filed by defendant Amgen Inc.. (Attorney David M. Stein added to party Amgen Inc.(pty:dft))(Stein, David) [Transferred from California Central on 7/31/2025.] (Entered: 07/03/2025)PACER Document
Jul 3, 2025STIPULATION Extending Time to Answer the complaint as to Amgen Inc. answer now due 8/15/2025, re Complaint (Attorney Civil Case Opening), 1 filed by defendant Amgen Inc..(Stein, David) [Transferred from California Central on 7/31/2025.] (Entered: 07/03/2025)PACER Document
Jul 3, 2025SUPPLEMENT to Notice of Deficiency in Electronically filed Pro Hac Vice Application (G-112C) - optional html form, 63, APPLICATION of Non-Resident Attorney Arthur J. Argall III to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc. (Pro Hac Vice Fee - $500 Fee Paid, Receipt No. ACACDC-40014982) 54 filed by Plaintiff Regeneron Pharmaceuticals, Inc.. (Umhofer, Matthew) [Transferred from California Central on 7/31/2025.] (Entered: 07/03/2025)PACER Document
Jul 11, 2025Text Only ORDER GRANTING APPLICATION of Non-Resident Attorney Arthur J. Argall III to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc. 54 by John W. Holcomb. THERE IS NO PDF DOCUMENT ASSOCIATED WITH THIS ENTRY. (pd) TEXT ONLY ENTRY [Transferred from California Central on 7/31/2025.] (Entered: 07/11/2025)PACER Document
Jul 11, 2025STANDING ORDER by Judge John W. Holcomb. (pd) [Transferred from California Central on 7/31/2025.] (Entered: 07/11/2025)PACER Document
Jul 15, 2025DECLARATION OF SERVICE filed by Plaintiff Regeneron Pharmaceuticals, Inc., re Transferring Case (Related Case)(CV-34),, 70, Initial Order upon Filing of Complaint - form only 75 Per L.R. 5-3.2 and Standing Order served on July 15, 2025. (Dayton, Margaret) [Transferred from California Central on 7/31/2025.] (Entered: 07/15/2025)PACER Document
Jul 21, 2025APPLICATION of Non-Resident Attorney Christian J. Gladden-Sorensen to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc. (Pro Hac Vice Fee - $500 Previously Paid on 7/21/2025, Receipt No. ACACDC-40138371) filed by Plaintiff Regeneron Pharmaceuticals, Inc.. (Attachments: # 1 Proposed Order) (Umhofer, Matthew) [Transferred from California Central on 7/31/2025.] (Entered: 07/21/2025)PACER Document
Jul 21, 2025APPLICATION of Non-Resident Attorney Chorong Song to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc. (Pro Hac Vice Fee - $500 Fee Paid, Receipt No. ACACDC-40138554) filed by Plaintiff Regeneron Pharmaceuticals, Inc.. (Attachments: # 1 Proposed Order) (Umhofer, Matthew) [Transferred from California Central on 7/31/2025.] (Entered: 07/21/2025)PACER Document
Jul 23, 2025Text Only ORDER GRANTING APPLICATION of Non-Resident Attorney Chorong Song to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc. 78, & APPLICATION of Non-Resident Attorney Christian J. Gladden-Sorensen to Appear Pro Hac Vice on behalf of Plaintiff Regeneron Pharmaceuticals, Inc. 77 by John W. Holcomb. THERE IS NO PDF DOCUMENT ASSOCIATED WITH THIS ENTRY. (pd) TEXT ONLY ENTRY [Transferred from California Central on 7/31/2025.] (Entered: 07/23/2025)PACER Document
Jul 25, 2025Notice of Appearance or Withdrawal of Counsel: for attorney Matthew Donald Umhofer counsel for Plaintiff Regeneron Pharmaceuticals, Inc.. Adding Chorong Song as counsel of record for Regeneron Pharmaceuticals, Inc. for the reason indicated in the G-123 Notice. Filed by Plaintiff Regeneron Pharmaceuticals, Inc.. (Umhofer, Matthew) [Transferred from California Central on 7/31/2025.] (Entered: 07/25/2025)PACER Document
Jul 28, 2025Notice of Appearance or Withdrawal of Counsel: for attorney Matthew Donald Umhofer counsel for Plaintiff Regeneron Pharmaceuticals, Inc.. Adding Christian J. Gladden-Sorensen as counsel of record for Regeneron Pharmaceuticals, Inc. for the reason indicated in the G-123 Notice. Filed by Plaintiff Regeneron Pharmaceuticals, Inc.. (Umhofer, Matthew) [Transferred from California Central on 7/31/2025.] (Entered: 07/28/2025)PACER Document