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Amgen v Sanofi-Aventis Deutschland (CFI, 17 July 2023)

Date17 July 2023
CourtCFI
DivisionMunich (DE) Local Division
Type of actionInfringement Action
Case number(s)UPC_CFI_14/2023
Registry referenceORD_551192/2023 · UPC_CFI_14/2023
PartiesAmgen Inc. v. Sanofi-Aventis Deutschland GmbH

Official decision (PDF) · UPC registry entry

Case timeline

Dhenne Avocats represents claimants and defendants in European patent disputes before the Unified Patent Court, including the Paris divisions.

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Dhenne Avocats · 10 October 2026

Our analysis

Summary

By procedural order of 17 July 2023 (UPC_CFI_14/2023, ORD_551192/2023), the judge-rapporteur of the Munich Local Division severed Amgen’s infringement action (EP 3 666 797) in so far as it was directed against Regeneron Pharmaceuticals, the fourth defendant, on which service by electronic means had failed. The measure was provisional, subject to the parties’ comments. The three Sanofi companies had been served on 11 July 2023. The order shows how the division prevents slow international service from holding up the case against defendants already served.

Question

Should the proceedings against the defendant not yet served be severed, and on what terms (prior hearing of the parties, allocation of the court fee)?

Decision

Regeneron having declined service by email, service had to proceed under Rule 274.1(a)(ii) RoP, waiting would have pushed back the time limits for Defendants 1 to 3 by months, so the proceedings were severed under Rule 303.2 RoP (reason 1). The prior hearing required by Rule 337 RoP covers only parties already represented, since only representatives have access to the case management system (reason 2). The court fee already paid is split equally between the two proceedings, absent submissions to the contrary (Rule 303.3 RoP, reason 3). Amgen and Defendants 1 to 3 could comment until 21 July 2023.

Key points for practice

Provisions applied

Rules of Procedure
Rules 274.1(a)(ii), 303.2, 303.3 and 337

Related decisions

Prepared by Dhenne Avocats from the official decision, consulted on 10 October 2026. The database is updated every week, on Friday. Only the official text is authoritative.


Decisions in the same proceedings

Going further

Lexicon: Patent infringement action.

Publications by Matthieu Dhenne: Pleading the Long Arm: What a UPC Statement of Claim Must Carry Beyond Jurisdiction (Kluwer Patent Blog).

Source and translations

Official source
Unified Patent Court registry link recorded in the record
Original language
not recorded
Translation available
no translation recorded the firm’s French record is a summary, not a translation
Date checked
not recorded
Only the official text is authoritative. A machine translation is never presented as official, republishing a third-party document requires a verified basis in rights, and a link to the source is preferred.

Follow this case

Proceedings, related decisions, appeals, parties and patents as recorded in the registry and in the Dhenne Avocats corpus. Each link states its source.

Proceedings

  • UPC_CFI_14/2023 official number

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Parties

Exact name as it appears in the record, group affiliation only where sourced and dated.

Decisions in the same proceedings and documented appeals

  1. 17 July 2023 Amgen v Sanofi-Aventis Deutschland (CFI, 17 July 2023) Infringement Action · UPC_CFI_14/2023
  2. 28 July 2023 Amgen v Sanofi-Aventis Deutschland (CFI, 28 July 2023) Infringement Action · UPC_CFI_14/2023

    La procédure contre Regeneron n'est pas disjointe, Amgen ayant retiré sa demande après la signification. L'ordonnance provisoire du 17 juillet 2023 devient sans objet.

  3. 16 August 2023 Amgen v Sanofi-Aventis Deutschland (CFI, 16 August 2023) Infringement Action · UPC_CFI_14/2023

    Le juge rapporteur dispense exceptionnellement les parties de réitérer les demandes déposées dans de mauvais circuits, fixe au 21 août 2023 le terme des observations et réserve un circuit unique aux délais et à l'audition conjointe.

  4. 17 August 2023 Amgen v Sanofi-Aventis Deutschland (CFI, 17 August 2023) Infringement Action · UPC_CFI_14/2023

    Le juge rapporteur dispense exceptionnellement les parties de réitérer les demandes déposées dans de mauvais circuits, réserve un circuit unique aux questions de délais et fixe au 22 août 2023 le terme des observations.

  5. 17 August 2023 Sanofi-Aventis Deutschland v Amgen (CFI, 17 August 2023) Generic Order · UPC_CFI_14/2023
  6. 29 August 2023 Amgen v Sanofi-Aventis Deutschland (CFI, 29 August 2023) Infringement Action · UPC_CFI_14/2023

    La division locale juge le mémoire en demande complet et valablement signifié malgré le téléversement ultérieur des pièces annoncées, refuse en principe toute prorogation, mais aligne à titre exceptionnel le délai de défense de tous les défendeurs au 17 octobre 2023.

  7. 3 November 2023 Amgen v Sanofi-Aventis Deutschland (CFI, 3 November 2023) Infringement Action · UPC_CFI_14/2023

    La langue de procédure passe de l'allemand à l'anglais, langue de délivrance du brevet, toutes les parties et la formation y consentant. Amgen traduit son mémoire introductif sous deux mois.

  8. 2 January 2024 Amgen v Sanofi-Aventis Deutschland (CFI, UPC_CFI_14/2023, ORD_597730/2023, 2 January 2024) Infringement Action · UPC_CFI_14/2023

    Le juge rapporteur proroge au 8 janvier 2024 le délai accordé aux défenderesses pour commenter les dates provisoires de la conférence intermédiaire et de l'audience.

  9. 2 January 2024 Amgen v Sanofi-Aventis Deutschland (CFI, UPC_CFI_14/2023, ORD_597730/2023, 2 January 2024, doc. 2) Infringement Action · UPC_CFI_14/2023
  10. 2 January 2024 Amgen v Sanofi-Aventis Deutschland (CFI, UPC_CFI_14/2023, ORD_597730/2023, 2 January 2024, doc. 3) Infringement Action · UPC_CFI_14/2023
  11. 2 February 2024 Amgen v Sanofi-Aventis Deutschland (CFI, 2 February 2024) Infringement Action · UPC_CFI_14/2023

    La division locale de Munich renvoie la demande reconventionnelle en nullité de Regeneron à la division centrale et poursuit l'action en contrefaçon d'Amgen, en se réservant de la suspendre ultérieurement.

  12. 24 February 2024 Sanofi v Amgen (CFI, 24 February 2024) Revocation Action · UPC_CFI_14/2023

    L'action en nullité de Sanofi et la demande reconventionnelle en nullité de Regeneron contre le brevet d'Amgen sont instruites conjointement en vue d'une audience le 4 juin 2024, la valeur de chaque action étant fixée à 100 millions d'euros.

What the record states

Nature of the act
Infringement Action
Outcome (Dhenne Avocats summary)
Le juge rapporteur disjoint la procédure contre Regeneron, non encore signifiée, pour ne pas retarder l'instance contre les sociétés Sanofi, et partage par moitié les frais de justice.
Appeal
No appeal documented in the corpus, this does not mean that no appeal was lodged.
Instance
First-instance decision, whether it has become final is not recorded.

Patents mentioned

Related decisions cited in the analyses

Scope: Dhenne Avocats corpus. Registry-based links are marked “official number”; links derived from the analyses are marked as such. An erroneous link can be withdrawn without deleting any record.

Patents and standards

PublicationRole in the disputeFamilyStandard and declarationPoolSources
EP 3 666 797
Antigen binding proteins to proprotein convertase subtilisin kexin type 9 (PCSK9)
recorded proprietor: Amgen Inc		Mentioned in the analysis (role not qualified)
Also mentioned in 21 other decision(s): Amgen v Sanofi-Aventis Deutschland (CoA, 25 November 2025) · Sanofi-Aventis Deutschland v Amgen (CFI, 16 July 2024) · Regeneron Pharmaceuticals v Amgen (CFI, 16 July 2024) · SANOFI-AVENTIS DEUTSCHLAND v AMGEN (CoA, 25 March 2026) · SANOFI-AVENTIS DEUTSCHLAND v AMGEN (CoA, 18 February 2026) · Dehns v Regeneron Pharmaceuticals (CFI, 22 October 2024) · Sanofi-Aventis Deutschland v Amgen (CFI, ORD_47230/2024, 22 October 20 · Sanofi-Aventis Deutschland v Amgen (CFI, ORD_47238/2024, 22 October 20		not recordednot recordednot recordedEspacenet · European Patent Register
existence and title of the publication checked on 30 October 2026 (Google Patents, Espacenet and Register links are not checked automatically)
mentioned in: Dhenne Avocats analysis
The statuses “asserted in litigation”, “declared essential”, “listed by a pool” and “essentiality examined by a court” are distinct and may coexist. Validity, infringement and technical essentiality are different questions. Scope: patents cited in the decisions of the Dhenne Avocats corpus, with no essentiality score or prediction.

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