ARTICLE
13 January 2026

CD Paris, 7 January 2026, Decision In The Counterclaim For Revocation UPC_CFI_433/2024

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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 Court cannot redraft claims for a party due to the principle of judicial neutrality. Amendments must be immediately intelligible without subjective reconstruction, ensuring clarity for the Court...
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1. Key takeaways

An application to substantively amend a patent is only admissible if a full, consolidated set of claims is filed in time with the deadline of the application (R. 30 RoP)

The Court cannot redraft claims for a party due to the principle of judicial neutrality. Amendments must be immediately intelligible without subjective reconstruction, ensuring clarity for the Court, the opposing party, and for subsequent annotations in patent registers. Any substantive amendment requires the applicant to submit a full set of the amended claims. An exception may apply in case of the mere deletion of claims (headnote 3, mn. 114).

The assessment of clarity, the sufficiency of the explanation regarding validity and infringement, and the reasonableness of the number of amendments is a matter of judicial discretion

Based on the specific circumstances of the case, the Court may decline to examine amendments that are inadequately formulated, insufficiently explained, or excessive in number (headnote 2, mn. 113, 116 et seqq).

Vague amendment requests are inadmissible for being indeterminate and improperly tasking the Court with defining the amendment (R. 30 RoP)

Example vague request: "delete any dependent claim as needed" (mn. 119).

2. Division

Central Division Paris

3. UPC number

UPC_CFI_433/2024

4. Type of proceedings

Counterclaim for revocation

5. Parties

Counterclaimant: Microsoft Corporation

Defendant in Counterclaim: Suinno Mobile & AI Technologies Licensing Oy

6. Patent(s)

EP 2 671 173

7. Body of legislation / Rules

R. 30 RoP

R. 355 RoP

Art. 76(1) EPC

Art. 123(2) EPC

Art. 84 EPC

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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