Emporia UK and Ireland Limited v. Seoul Viosys Co. Ltd.

UPC-CFI-258/2025

In this significant UPC decision, the court granted a revocation action against an LED patent (EP 3 926 698 B1) due to added subject-matter. While some claims were already invalidated in parallel proceedings, the UPC confirmed the invalidity of several remaining dependent claims. The ruling provides important guidance on how partial revocation affects dependent claims and addresses procedural hurdles related to amendments following complex litigation.

Jurisdiction
European UPC
Court
Paris (FR) Central Division - Seat
Case Number
UPC-CFI-258/2025
Judge(s)
and judge; Tatyana Zhilova Technically qualified judge Alessandra Sani DECIDING JUDGE

What the Court Held — Ratio Decidendi

The court confirmed that the patent suffered from a defect of added subject-matter. Crucially, it established that the revocation of an independent claim does not automatically invalidate dependent claims; surviving dependent claims may retain autonomous patentability due to additional technical features. The decision also addressed procedural issues regarding amendments and parallel proceedings.

Practitioner Note

This decision partially_granted relief to the petitioner. If you are facing a similar patent dispute before Paris (FR) Central Division - Seat, this precedent supports interim or final relief where the facts are comparable. The ratio regarding the applied tests is particularly relevant for strategy.

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Disclaimer: This page contains an automated summary based on publicly available judicial records. The content is generated for informational purposes only and does not constitute legal advice. Always verify details against the original source judgment before relying on this information for any legal purpose. If you believe any information is inaccurate, please contact us.

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