UPC CFI 440/2023
Dec 5, 2023·EP3404726 · ULTRAVIOLET LIGHT-EMITTING DEVICE
Action number: ACT 588685/2023
- Case details
- StatusCase Closed (Patent infringed)ActionInfringementCategoryMain infringement action
- Parties
- Claimants
- Seoul Viosys Co., Ltd.Operating co.
Representatives- Pauline Debré-Linklaters LLP
- Laetitia Nicolazzi
Respondents- Laser Components SASOperating co.
- Photon Wave Co., Ltd.Operating co.
Representatives- Helge von Hirschhausen
- Peter Klein-Prüfer & Partner mbB
- Dorothea Hofer-Prüfer & Partner mbB
- Division
- Paris LD
- Technology
- Electrical engineeringSemiconductors
- Language
- French
- First decided
- Feb 12, 2024
- Last decision
- Apr 24, 2025
| Infringement found | Median days to first decision | |
|---|---|---|
| All UPC | 53% (62/117) | 124 |
| Paris LD | Locked | Locked |
| Judge Camille Lignières | Locked | Locked |
| Judge Carine Gillet | Locked | Locked |
| Judge Peter Tochtermann | Locked | Locked |
| Judge Anthony Soledade | Locked | Locked |
At the UPC: Seoul Semiconductor Group (29 cases)·Laser Components SAS (2 cases)
This dispute contains 5 other proceedings
UPC CFI 444/2025·UPC CFI 165/2025·UPC CFI 101/2025·UPC CFI 238/2024·CoA PC 01/2024
- 2025-04-24Infringement ActionPublic
Summary: The Paris Local Division found that Laser Components SAS infringed EP 3 404 726 owned by Seoul Viosys Co. Ltd., ordered corrective measures including withdrawal and destruction of infringing UV-C LED chips from the French market, and directed disclosure of information for damages calculation, while reserving the quantum of damages for a separate procedure.
Show the legal issues (4)
- Patent infringement of UV-C LED chip patent
- Claim interpretation (mesa indentations, passivation layer openings)
- Corrective measures (Art. 64 UPCA)
- Information disclosure for damages calculation
- 2025-02-17Infringement ActionPublic
Summary: The Paris Local Division issued an interim management order following the preparatory conference (R. 105.5 RoP) in the infringement action by Seoul Viosys against Laser Components SAS and Photon Wave Co. concerning EP 3 404 726 (UV LEDs). The order summarised the key contested legal and factual issues (claim interpretation, PKB chip characteristics), fixed the case value at EUR 500,000 (rejecting the defendant's argument for EUR 250,000), and scheduled the oral hearing for 13 March 2025.
Show the legal issues (4)
- Interim management conference order (R. 105.5 RoP)
- Claim interpretation (contact electrode, bump electrode, passivation layer openings)
- Case value determination (R. 370.6 / R. 104(i) RoP)
- Default procedure for absent defendant
- 2024-07-24
Summary: The Paris Local Division issued a procedural order addressing the schedule and management of the Seoul Viosys v. Laser Components infringement action, including Photon Wave's intervention and a parallel revocation action at the Central Division.
Show the legal issues (3)
- Procedural management
- Third-party intervention
- Stay pending parallel revocation action (Rule 118(2)(b) RoP)
- 2024-05-06
Summary: Order of the Paris Local Division (full panel) on several procedural applications filed by Photon Wave Co. Ltd. (intervener/third party supporter of defendant Laser Components SAS) and Seoul Viosys Co. Ltd. (claimant) in an infringement action concerning EP 3 404 726. The court: (1) held that Photon Wave had not filed its revocation brief within the deadline set for the party it supports, and rejected its application for extension of that deadline; (2) rejected Photon Wave's request to change the language of proceedings from French to another language, holding that neither the nationality of a party's representative nor of the intervener justifies a language change; (3) rejected Photon Wave's request for an autonomous revocation brief on the basis that an intervener cannot develop claims contrary to those of the party it supports; (4) rejected Seoul Viosys's request for postponement of its reply deadline.
Show the legal issues (4)
- Intervener's limitations: cannot develop claims contrary to supported party (Rule 313 RoP)
- Deadline for intervener's revocation brief tied to supported party's deadline
- Language of proceedings: refusal of change based on representative or intervener nationality (Rule 322 RoP)
- Refusal of extension of deadline for autonomous revocation brief (Rule 9 RoP)
- 2024-03-14
Summary: Procedural order (in French) granting Laser Components SAS an extension of the deadline for filing its Statement of Defence in the infringement action brought by Seoul Viosys. The extension was granted due to technical difficulties experienced by the third-party intervener (Photon Wave Co.) in the CMS system and the anticipated filing of a separate invalidity counterclaim requiring coordination.
Show the legal issues (3)
- Extension of time period (Rule 9.3 RoP)
- Third-party intervention (Rule 316.2 RoP)
- Technical difficulties with CMS
- 2024-02-27
Summary: The Paris Local Division refused the defendant Laser Components SAS's request to change the language of proceedings from French to English (the language in which the patent was granted) in Seoul Viosys Co., Ltd v Laser Components SAS. The Court applied R. 322 RoP and Art. 49.4 UPCA, finding that while the plaintiff is Korean and chose French, the defendant is a French company based in France, and neither the representative's nationality nor a forced intervenor's nationality constitutes sufficient grounds of convenience or equity to justify a language change. The request was therefore rejected.
Show the legal issues (2)
- Language of proceedings under Art. 49.4 UPCA and R. 322 RoP
- Change to patent language — grounds of convenience and equity
| Document title | Date | Public |
|---|---|---|
| Acknowledgement-of-change-of-a-representative | 2025-04-30 | Not public |
| Application-RoP293-Receipt | 2025-04-29 | Not public |
| Formal-checks_Notification-of-positive-outcome | 2025-04-29 | Not public |
| Application-RoP293 | 2025-04-28 | Not public |
| Withdrawal Dorothea Hofer from Representation | 2025-04-28 | Not public |
| Headnote-and-Keyword-Translated | 2025-04-24 | Not public |
| Headnote-and-Keywords | 2025-04-24 | Not public |
| décision anonymisée | 2025-04-24 | Not public |
| DecisionOutcome | 2025-04-24 | Not public |
| Décision au fond | 2025-04-24 | Not public |
| Décision au fond | 2025-04-24 | Public |
| oral hearing referencing | 2025-04-22 | Not public |
| oral hearing referencing | 2025-04-22 | Not public |
| Receipt | 2025-03-06 | Not public |
| 250306-Requete rejet du support de plaidoiries de Photon Wave (pdfA signed) | 2025-03-06 | Not public |
| Headnote-and-Keywords | 2025-02-17 | Not public |
| Interim-Procedure-Closure | 2025-02-17 | Not public |
| Summon-Oral-Hearing | 2025-02-17 | Not public |
| ord IC R 105.5 | 2025-02-17 | Public |
| Hearing-Dates | 2025-02-17 | Not public |
| Ord suivnat conf de mise en état R 105.5 | 2025-02-17 | Public |
| référence IC | 2025-02-17 | Not public |
| référence IC | 2025-02-17 | Not public |
| Fix-Interim-Conference-Date | 2025-01-16 | Not public |
| Ord report date conf mise en état | 2025-01-16 | Public |
| Interim-Conference-Decision | 2025-01-15 | Not public |
| Written-Procedure-Closure | 2025-01-15 | Not public |
| Hearing-Dates | 2024-09-30 | Not public |
| Ord set the dates | 2024-09-30 | Public |
| Hearing-Dates | 2024-09-30 | Not public |
| Panel-Appointment | 2024-08-20 | Not public |
| Headnote-and-Keyword-Translated | 2024-07-24 | Not public |
| Headnote-and-Keywords | 2024-07-24 | Not public |
| Ordonnance rejet sursis | 2024-07-24 | Public |
| Eingabe | 2024-07-19 | Not public |
| Receipt | 2024-07-04 | Not public |
| 240704-Requete memoire complementaire regle 36 | 2024-07-04 | Not public |
| 240701-Observations de Seoul Viosys relatives aux demandes de Photon Wave (sursis) | 2024-07-01 | Not public |
| PO avis | 2024-06-19 | Not public |
| Acknowledgement-of-lodging | 2024-06-14 | Not public |
| I3bis_US11682747_B2 | 2024-06-14 | Not public |
| I3_Witness_Statement_Mr_OH_12_06_2024 | 2024-06-14 | Not public |
| Liste_des_pieces_jointes_LC | 2024-06-14 | Not public |
| I6_Tescan_report_fr_p20_22 | 2024-06-14 | Not public |
| I5_Wiktionary_expose_pdfA_V2 | 2024-06-14 | Not public |
| I3_Witness_Statement_Mr_OH_12_06_2024_FR | 2024-06-14 | Not public |
| I2_Sze_ohmic | 2024-06-14 | Not public |
| I1_BGH_20_01_1994_X_ZR_102_91_Muffelofen | 2024-06-14 | Not public |
| I1a_BGH_20_01_1994 _X _ZR _102_91_Muffelofen_FR | 2024-06-14 | Not public |
| I5a_Wiktionary_expose_fr | 2024-06-14 | Not public |
| I2a_Sze_ohmic_FR | 2024-06-14 | Not public |
| I4_Further_Witness_Statement_Mr_OH_12_06_2024 | 2024-06-14 | Not public |
| I4a_Further_Witness_Statement_Mr_OH_12_06_2024_FR | 2024-06-14 | Not public |
| Duplik auf Replik | 2024-06-14 | Not public |
| I3bis_US11682747_B2_FR | 2024-06-14 | Not public |
| Acknowledgement-of-lodging | 2024-05-16 | Not public |
| PC 29 - Oberlandgericht Dusseldorf_ decision du 20 janvier 2017 - I-2 U 43-12_ BeckRS 2017_ 102028 | 2024-05-16 | Not public |
| PC 30 - Oberlandgericht Dusseldorf_ GRUR-RS 2016_ 111011 | 2024-05-16 | Not public |
| 240516_ Memoire en replique au memoire en defense et au memoire en intervention | 2024-05-16 | Not public |
| PC 29 - Oberlandgericht Dusseldorf_ decision du 20 janvier 2017 - I-2 U 43-12_ BeckRS 2017_ 102028 | 2024-05-16 | Not public |
| PC 26 - Images originales contestees | 2024-05-16 | Not public |
| PC 30 - Oberlandgericht Dusseldorf_ GRUR-RS 2016_ 111011 | 2024-05-16 | Not public |
| PC 25 - Attestation comptable Linklaters | 2024-05-16 | Not public |
| PC 24 - Facture du laboratoire Tescan | 2024-05-16 | Not public |
| PC 27 - Prototype representant la puce PKB-H02-F35 | 2024-05-16 | Not public |
| PC 23 - Recepisse du paiement des frais de procedure | 2024-05-16 | Not public |
| PC 28 - Prototype representant le mode de realisation du brevet EP 726 illustre a la Figure 22 | 2024-05-16 | Not public |
| Ord. 6 mai 2024 sur demandes dans memoire intervention | 2024-05-06 | Public |
| 240422-Observations de Seoul Viosys relatives aux demandes de Photon Wave signed | 2024-04-22 | Not public |
| Ord. préliminaire 9 avril 2024 demande d'observations écrites à Seoul Viosys sur le mémoire d'interventions | 2024-04-09 | Not public |
| Acknowledgement-of-lodging | 2024-03-28 | Not public |
| Formal-checks_Notification-of-positive-outcome | 2024-03-28 | Not public |
| Klageewiderung | 2024-03-28 | Not public |
| ergänzte Klageerwiderung | 2024-03-28 | Not public |
| Formal-checks_Request-for-correction | 2024-03-19 | Not public |
| Acknowledgement-of-lodging | 2024-03-18 | Not public |
| Klageewiderung | 2024-03-18 | Not public |
| Outcome of the Order | 2024-03-13 | Not public |
| Ord prorogation délai refus | 2024-03-13 | Public |
| Receipt | 2024-03-11 | Not public |
| Antrag auf Fristgesuch | 2024-03-08 | Not public |
| Ordonnance de rejet de la proposition de changement de langue | 2024-02-27 | Public |
| Receipt | 2024-02-21 | Not public |
| Antrag auf Änderung der Verfahrenssprache | 2024-02-16 | Not public |
| Outcome of the Order | 2024-02-12 | Not public |
| Ord IF Seoul | 2024-02-12 | Not public |
| 240129 - Observations de Seoul Viosys | 2024-01-29 | Not public |
| PO Laser Components observations IF | 2024-01-19 | Not public |
| Receipt | 2024-01-17 | Not public |
| Intervention forcee | 2024-01-17 | Not public |
| epoUploadDocumentsWorkflow | 2023-12-26 | Not public |
| Document from EPO | 2023-12-22 | Not public |
| Acknowledgement of access to case | 2023-12-19 | Not public |
| Notification Of Service | 2023-12-19 | Not public |
| AR laser components | 2023-12-19 | Not public |
| Letter for Service | 2023-12-15 | Not public |
| Panel-Appointment | 2023-12-15 | Not public |
| EPO-Request-for-case-pending | 2023-12-15 | Not public |
| Receipt | 2023-12-15 | Not public |
| Formal-checks_Notification-of-positive-outcome | 2023-12-15 | Not public |
| PC 04b- Catalogue LED Seoul Viosys | 2023-12-14 | Not public |
| PC 07 - Constat d huissier des emails de commande en date du 9 novembre 2023 | 2023-12-14 | Not public |
| Memoire modifie (08.12.2023) | 2023-12-14 | Not public |
| PC 01 - Certificat enregistrement Seoul Viosys | 2023-12-14 | Not public |
| PC 20 - Images 3D du mode de realisation du brevet EP 726 illustre par la Figure 22 | 2023-12-14 | Not public |
| PC 14 - Fascicule du brevet EP 3 404 726 | 2023-12-14 | Not public |
| PC 09 - Constat d huissier de transmission des produits a la requerante en date du 2 octobre 2023 | 2023-12-14 | Not public |
| PC 12 - Rapport d analyse de Tescan Analytics en date du 29 novembre 2023 | 2023-12-14 | Not public |
| PC 03 - Extraits du site internet de Seoul Viosys | 2023-12-14 | Not public |
| PC 17 - Extrait du registre allemand des brevets | 2023-12-14 | Not public |
| PC 04a - Catalogue LED Seoul Viosys | 2023-12-14 | Not public |
| PC 16 - Confirmation du paiement des annuites pour le brevet EP 726 (France) | 2023-12-14 | Not public |
| PC 15 - Etat des inscriptions pour le brevet EP 726 (France) | 2023-12-14 | Not public |
| PC 19 -Extrait du registre anglais des brevets | 2023-12-14 | Not public |
| PC 19 -Extrait du registre anglais des brevets | 2023-12-14 | Not public |
| PC 21 - X. Guo and E.F. Schubert Journal of Applied Physics | 2023-12-14 | Not public |
| PC 02 - Extrait du site internet de Seoul Semi Conductor (portefeuille de brevets) | 2023-12-14 | Not public |
| PC 05 - Extrait Kbis de la societe Laser Components SAS | 2023-12-14 | Not public |
| PC 17 - Extrait du registre allemand des brevets | 2023-12-14 | Not public |
| PC 08 - Constat d huissier de reception des produits en date du 21 septembre 2023 | 2023-12-14 | Not public |
| PC 12 - Rapport d analyse de Tescan Analytics en date du 29 novembre 2023 | 2023-12-14 | Not public |
| PC 02 - Extrait du site internet de Seoul Semi Conductor (portefeuille de brevets) | 2023-12-14 | Not public |
| PC 22 - Images 3D illustrant la puce PKB-H02-F35 | 2023-12-14 | Not public |
| PC 13 - Extraits du site internet du laboratoire PROBION | 2023-12-14 | Not public |
| PC 06 - Constat d huissier sur le site internet de Laser Components du 23 juin 2023 | 2023-12-14 | Not public |
| PC 04a - Catalogue LED Seoul Viosys | 2023-12-14 | Not public |
| PC 10 - Images au microscope optique des references PKC-H02-F35 et PKD-H02-F35 | 2023-12-14 | Not public |
| PC 18 - Extrait du registre neerlandais des brevets | 2023-12-14 | Not public |
| PC 18 - Extrait du registre neerlandais des brevets | 2023-12-14 | Not public |
| PC 14 - Fascicule du brevet EP 3 404 726 | 2023-12-14 | Not public |
| PC 11 - Plaquette de presentation du laboratoire Tescan | 2023-12-14 | Not public |
| PC 21 - X. Guo and E.F. Schubert Journal of Applied Physics | 2023-12-14 | Not public |
| PC 01 - Certificat enregistrement Seoul Viosys | 2023-12-14 | Not public |
| Lettre de reponse a la demande de modification (08.12.2023) | 2023-12-14 | Not public |
| Formal-checks_Request-for-correction | 2023-12-14 | Not public |
| Lettre de reponse a la demande de modification (08.12.2023) | 2023-12-08 | Not public |
| Memoire modifie (08.12.2023) | 2023-12-08 | Not public |
| Formal-checks_Request-for-correction | 2023-12-07 | Not public |
| Formal response to the request for amendments | 2023-12-07 | Not public |
| Formal-checks_Request-for-correction | 2023-12-06 | Not public |
| Acknowledgement-of-lodging | 2023-12-05 | Not public |
| Memoire | 2023-12-05 | Not public |
Seoul Viosys sued Laser Components SAS for infringement of its UV-C LED chip patent EP 3 404 726 in France, with Photon Wave (Korean manufacturer) joining as an intervener. The Paris Local Division found infringement and ordered Laser Components to withdraw and destroy its stock of infringing UV-C LED chips with an astreinte, to disclose distribution and sales information for damages calculation, and declared Laser Components liable for damages to be quantified in separate proceedings; a EUR 50,000 provisional cost contribution was also awarded.
EP 3 404 726 is infringed by Laser Components SAS's UV-C LED chips sourced from Photon Wave
ClaimantLegal basis: Art. 64 UPCANote: The Paris Local Division found infringement of Seoul Viosys's UV LED patent by Laser Components' commercially supplied UV-C LED chips on the French market.
Corrective measures including withdrawal and destruction of infringing products are appropriate
ClaimantLegal basis: Art. 64 UPCANote: The court ordered Laser Components to withdraw infringing UV-C LED chips from the French market and destroy its stock, with an astreinte of up to EUR 50 per product.
No rejected arguments captured.
The Paris Local Division's decision concerns EP 3 404 726 (ultraviolet light-emitting device with specific electrode and passivation layer architecture including mesa indentations and bump electrodes). The excerpt contains the full claim text of the maintained claims but does not include detailed claim construction reasoning, as the decision is primarily presented in its operative part.