ARTICLE
2 September 2026

LD Düsseldorf, August 25, 2026, Decision On Infringement Action, UPC_CFI_56/2025, UPC_CFI_864/2025

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Bardehle Pagenberg

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BARDEHLE PAGENBERG combines the expertise of attorneys-at-law and patent attorneys. As one of the largest IP firms in Europe, BARDEHLE PAGENBERG advises in all fields of Intellectual Property, including all procedures before the patent and trademark offices as well as litigation before the courts through all instances.
The Local Division Düsseldorf of the Unified Patent Court addresses parallel infringement and revocation proceedings involving dental implant technology patent EP 3 402 420 B1. The case involves Versah LLC asserting patent rights against multiple defendants across nine European jurisdictions, with one defendant withdrawing following settlement while others continue to contest both infringement claims and patent validity.
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1. Key takeaways

Direct infringement of a product claim turns on objective capability, not the manufacturer’s intended or recommended use

For direct infringement of a product claim under Art. 25(a) UPCA, the decisive factor is whether the accused embodiment is, due to its nature and suitability for use, objectively capable of fulfilling the claim features; regardless of the direction of use the defendant primarily recommends.

A defendant’s warning that the product develops “high cutting performance” in a non-recommended direction can be read as an implicit admission of objective suitability to perform the claimed function in that direction.

An exclusive sub-licensee may sue under Art. 47(2) UPCA if the license chain grants the right to sue and the proprietor received prior notice

Validity of the underlying license chain, including questions of self-dealing by a common representative, is assessed under the applicable corporate/contract statute (here, Michigan law), not under the law of the forum.

Facts on foreign law left uncontested by the defendant, despite the opportunity to object, may be treated as undisputed under R. 171.2 RoP.

2. Division

Local Division Düsseldorf

3. UPC number

UPC_CFI_56/2025

UPC_CFI_864/2025

4. Type of proceedings

Infringement action and revocation counterclaim

5. Parties

Claimant: Versah LLC

Defendants: HaeNaem Co., Ltd.; Adin Dental Implant Systems Ltd.

(Originally co-defendant, later withdrawn following settlement: Adin Dental Implant Systems GmbH)

6. Patent(s)

EP 3 402 420 B1

7. Jurisdictions

Germany, Austria, Denmark, Italy, Belgium, Finland, France, the Netherlands, Sweden

8. Body of legislation / Rules

Art. 25(a) UPCA, Art. 47(2) UPCA, R. 171.2 RoP

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The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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