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IP Verse

Tetrafluoropropene-Based Azeotropic Compositions - EP3523389

The patent EP3523389 was granted to Arkema France on Oct 29, 2025. The application was filed on Oct 9, 2017 under application number EP17787238A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3523389

ARKEMA FRANCE
Application Number
EP17787238A
Filing Date
Oct 9, 2017
Status
Patent Maintained As Amended
Sep 26, 2025
Publication Date
Oct 29, 2025
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
THE CHEMOURS FCDec 15, 2022ABITZ & PARTNERWITHDRAWN

Patent Citations (13) New

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

Citation PhasePublication Number
DESCRIPTIONJP4110388B
DESCRIPTIONUS5065990
DESCRIPTIONUS5363674
DESCRIPTIONWO2004037913
DESCRIPTIONWO2005105947
DESCRIPTIONWO2006094303
DESCRIPTIONWO2012177742
INTERNATIONAL-SEARCH-REPORTKR20110029417
INTERNATIONAL-SEARCH-REPORTUS2010122545
INTERNATIONAL-SEARCH-REPORTUS2011089366
OPPOSITIONKR101088358B
OPPOSITIONWO2010059677
OPPOSITIONWO2018069620

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

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