The weekly litigation news digest is live. Subscribe now

IP Verse

Use Of Copolymers Having A Specific Molar Mass Distribution For Lowering The Cold Filter Plugging Point Of Fuels - EP4189048

The patent EP4189048 was granted to Centre National DE LA Recherche Scientifique Cnrs on Sep 4, 2024. The application was originally filed on Jul 8, 2021 under application number EP21746531A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4189048

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Application Number
EP21746531A
Filing Date
Jul 8, 2021
Status
Granted And Under Opposition
Aug 2, 2024
Publication Date
Sep 4, 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

CLARIANT PRODUKTE DEUTSCHLANDJun 3, 2025CLARIANT PRODUKTE DEUTSCHLANDADMISSIBLE

Patent Citations (34) New

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

Citation PhasePublication Number
DESCRIPTIONFR20170061700
DESCRIPTIONEP0261959
DESCRIPTIONEP0327423
DESCRIPTIONEP0512889
DESCRIPTIONEP0593331
DESCRIPTIONEP0663000
DESCRIPTIONEP0674689
DESCRIPTIONEP0680506
DESCRIPTIONEP0736590
DESCRIPTIONEP0832172
DESCRIPTIONEP0860494
DESCRIPTIONEP0861882
DESCRIPTIONEP0915944
DESCRIPTIONEP0938535
DESCRIPTIONEP1881053
DESCRIPTIONEP1881055
DESCRIPTIONFR2772783
DESCRIPTIONFR2772784
DESCRIPTIONUS2005223631
DESCRIPTIONUS2011271586
DESCRIPTIONUS2012010112
DESCRIPTIONUS5998530
DESCRIPTIONWO2011001352
DESCRIPTIONWO2012004300
DESCRIPTIONWO2012085865
DESCRIPTIONWO9314178
DESCRIPTIONWO9804656
INTERNATIONAL-SEARCH-REPORTUS2004226216
INTERNATIONAL-SEARCH-REPORTUS2005183326
INTERNATIONAL-SEARCH-REPORTUS5743923
INTERNATIONAL-SEARCH-REPORTWO2020141126
OPPOSITIONDE1147799
OPPOSITIONEP1391498
OPPOSITIONWO2020141126

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