The Weekly Litigation News Digest is now live. Subscribe now

IP Verse

Optical Light Diffuser And Method For Measurement Thereof - EP2904435

The patent EP2904435 was granted to Arkema France on Nov 27, 2024. The application was originally filed on Sep 27, 2013 under application number EP13844436A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP2904435

ARKEMA FRANCE
Application Number
EP13844436A
Filing Date
Sep 27, 2013
Status
Granted And Under Opposition
Oct 25, 2024
Publication Date
Nov 27, 2024
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

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

ROHMAug 22, 2025WINKENSTETTEADMISSIBLE

Patent Citations (25) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTUS2003002158
INTERNATIONAL-SEARCH-REPORTUS2003218192
INTERNATIONAL-SEARCH-REPORTUS2008080055
INTERNATIONAL-SEARCH-REPORTUS2010067258
INTERNATIONAL-SEARCH-REPORTUS2011255167
INTERNATIONAL-SEARCH-REPORTUS2011315189
INTERNATIONAL-SEARCH-REPORTUS2012138997
INTERNATIONAL-SEARCH-REPORTWO2007058731
INTERNATIONAL-SEARCH-REPORTWO2008045181
OPPOSITIONDE10336130
OPPOSITIONEP1447686
OPPOSITIONEP1775603
OPPOSITIONJP2010032908
OPPOSITIONKR20130012378
OPPOSITIONUS2004191550
OPPOSITIONUS2010265739
OPPOSITIONWO2004042471
OPPOSITIONWO2006100126
OPPOSITIONWO2006100127
OPPOSITIONWO2009074358
OPPOSITIONWO2010048935
SEARCHDE10336130
SEARCHUS2003218192
SEARCHUS2010079701
SEARCHUS8163827

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