A White Light Emitting Device - EP4182403

The patent EP4182403 was granted to Signify Holding on Sep 18, 2024. The application was originally filed on Jul 20, 2022 under application number EP22751732A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4182403

SIGNIFY HOLDING
Application Number
EP22751732A
Filing Date
Jul 20, 2022
Status
Granted And Under Opposition
Aug 15, 2024
Grant Date
Sep 18, 2024
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentativeOpposition Status

Get instant alerts for new oppositions and patent status changes

OSRAMJun 18, 2025VIERINGADMISSIBLE
NOVAGRAAFJun 17, 2025-ADMISSIBLE

Patent Citations (7) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication NumberPublication Link
INTERNATIONAL-SEARCH-REPORTUS2017342320
INTERNATIONAL-SEARCH-REPORTWO2017021087
INTERNATIONAL-SEARCH-REPORTWO2020190921
OPPOSITIONEP2629341
OPPOSITIONUS2017342320
OPPOSITIONWO2017021087
OPPOSITIONWO2020190921

Non-Patent Literature (NPL) Citations (2) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
OPPOSITION- Cho Jaehee, Schubert E. Fred, Kim Jong Kyu, "Efficiency droop in light‐emitting diodes: Challenges and countermeasures", Laser & photonics reviews, DE , (20130501), vol. 7, no. 3, doi:10.1002/lpor.201200025, ISSN 1863-8880, pages 408 - 421, XP093290453
OPPOSITION- Houqiang Fu , Yuji Zhao, "9 - Efficiency droop in GaInN/GaN LEDs", Houqiang Fu , Yuji Zhao, JianJang Huang, Hao-Chung Kuo and Shyh-Chiang Shen, Nitride Semiconductor Light-Emitting Diodes (LEDs) (Second Edition) - Materials, Technologies, and Applications, Woodhead Publishing, (20180101), pages 299 - 325, doi:10.1016/B978-0-08-101942-9.00009-5, ISBN 978-0-08-101942-9, XP009562352

Download Citation Report

Get a free citation report including examiner, opposition, and international search citations.

Get Citation Report

Dossier Documents

The dossier documents provide a comprehensive record of the patent’s prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination.

  • Date

    Description

  • Get instant alerts for new documents