ORD_3876/2025

ULTRAVIOLET LIGHT-EMITTING DEVICE

Procedural & sub-applicationsCase Management OrdersParis LDGeneric Order—

Overview Decisions Citations Documents Timeline

Parties

Claimants

Photon Wave Co., Ltd.

Reps: Dorothea Hofer

Respondents

Seoul Viosys Co., Ltd.

Reps: Pauline Debré

Judges

French-seated division — individual judges anonymized.

Panel member (anonymized)Presiding Judge and Judge-rapporteur
Panel member (anonymized)Legally Qualified Judge
Panel member (anonymized)Legally Qualified Judge
Panel member (anonymized)Technically Qualified Judge

Patents

EP3404726

CPC codes: H10H20/8506, H10W72/072, H10H20/835, H10H20/841, H10H20/857, H10H20/84, H10H20/85, H10H20/831, H10H20/8312, H10H20/81

Sector: Semiconductor Devices

Outcome

Dismissed

Filed: —

First decided: Jan 24, 2025

Language: —

The Paris Local Division declared the revocation action brought by Photon Wave Co. Ltd. against Seoul Viosys Co. Ltd. (EP 3 404 726) inadmissible, holding that a standalone revocation action by a third-party intervener in parallel infringement proceedings was not permitted under Articles 32 and 33 UPCA where the intervener had failed to comply with mandatory time limits for filing a counterclaim for revocation.