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UPC CFI 483/2023

Oct 13, 2023·EP3223320 +1 more: LIGHT EMITTING DIODE

Case details
Status
Case Closed
Action
Infringement
Category
Main Infringement Action
Parties
Claimants
Reps: Bolko Ehlgen (Linklaters LLP); Julia Schönbohm (Linklaters LLP)
Respondents
Reps: Alessandra Sani; Rachida Boudra-Seddiki; Mojca Mlakar
Division
Dusseldorf LD
Judges
Technology
Semiconductors · LED/Lighting · Semiconductor Devices
Language
German
Claims
At issue1
Revokedall
Notes: EP 3 223 320 B1 revoked entirely for Germany, France, Italy and Netherlands due to added matter; independent claim 1 specifically identified as the primary claim at issue; all auxiliary requests also failed.
Decisions
  • 2024-10-10
    RevokedInfringement Action

    Düsseldorf Local Division revoked EP 3 223 320 for Germany, France, Italy, and the Netherlands based on the counterclaim for revocation, finding the patent was invalid due to added matter (Art. 138(1)(c) EPC / Art. 123(2) EPC). The infringement action was dismissed as a result. Seoul Viosys (claimant) was ordered to bear all costs.

    Legal issues:Counterclaim for revocation – added matter (Art. 138(1)(c) / Art. 123(2) EPC)Isolieted counterclaim by individual defendantsPatent amendment deniedInfringement action dismissed due to invalidity
Documents
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Wiederholter Upload der Ladung vom 21.05.20242024-07-18Public
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Klarstellung R. 36 VerfO2024-07-01Public
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Ladung zur mündlichen Verhandlung, R. 108 VerfO2024-05-21Public
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R. 28.1 VerfO - Gelegenheit zur Stellungnahme2024-02-12Not public
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Anordnung Vorgehen Art. 33 Abs. 3 lit. a EPGÜ2024-01-31Not public
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Notification of service B2_expert klein2023-12-14Not public
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Coverage: Partial.Reasoning extracted with partial coverage — some sections may be incomplete.
Plain-English summary

Seoul Viosys brought an infringement action against expert e-Commerce GmbH and expert klein GmbH concerning its LED patent EP 3 223 320 before the Düsseldorf Local Division. Following a counterclaim for revocation by one defendant, the court revoked the patent for Germany, France, Italy, and the Netherlands on the ground of added matter under Art. 123(2) EPC — specifically, the requirement of a mesa with a reflective electrode arranged thereon was not present in the application as filed and could not be cured by any auxiliary request. The infringement action was dismissed and Seoul Viosys was ordered to pay all costs.

Accepted arguments
What the court agreed with — by party.

  • EP 3 223 320 is invalid for added matter (Art. 123(2) EPC): the claims include a mesa with a reflective electrode on it, which was not disclosed in the application as filed

    RespondentLegal basis: Art. 138(1)(c) EPC; Art. 123(2) EPC

    Note: The Düsseldorf Local Division found the requirement of a mesa with a reflective electrode arranged thereon was not disclosed in the original application; the feature was added beyond the application content.

Rejected arguments
What the court did not agree with — and why.

  • All auxiliary requests to amend the patent to overcome the added-matter objection

    ClaimantLegal basis: Art. 123(2) EPC

    Reason: All auxiliary requests likewise required a mesa with the reflective electrode arranged on it, thus the added matter could not be cured by any of the proposed amendments.

  • Infringement of EP 3 223 320 by expert e-Commerce and expert klein for LED products

    ClaimantLegal basis: Art. 138(1)(c) EPC

    Reason: Patent was revoked for invalidity (added matter); infringement action therefore lacks the necessary foundation.

  • A defendant that did not file its own revocation counterclaim can still benefit from invalidity arguments in its defence

    RespondentLegal basis: R. 25.1 RoP

    Reason: Under R. 25.1 RoP, invalidity argumentation is formally excluded for defendants who did not file a revocation counterclaim; however, as long as the court does not separate proceedings against co-defendants, this has no practical effect where other defendants did file a counterclaim.

Key legal principles
Doctrines and rules cited in the reasoning.
Where multiple defendants are sued jointly, each runs its own formally independent proceeding; acts of one defendant create no advantages or disadvantages for othersA defendant who did not file a revocation counterclaim is formally barred from invalidity argumentation, but this has no practical effect as long as the proceedings against co-defendants (who did file) are not separatedSecurity for enforcement (R.118.8 RoP) requires balancing claimant's effective enforcement interest against risk of unenforceable damages award; financial position of claimant is a relevant factorAdded matter (Art. 123(2) EPC): subject-matter must be directly and unambiguously disclosed in the application as filed

Browse other cases on this principle.

Claim construction notes

The central claim construction issue was the interpretation of 'mesa' and 'reflective electrode arranged on the mesa.' The court found that Claim 1 protects a mesa structure with a reflective electrode disposed on top of it. This was not disclosed in the application as originally filed, which did not unambiguously disclose such an arrangement, constituting added matter.

Seoul Viosys Co., Ltd. v expert e-Commerce GmbH — UPC CFI 483/2023 | UPClytics