Tetrafluoropropene-Based Azeotropic Compositions

Patent No. EP3523389 (titled "Tetrafluoropropene-Based Azeotropic Compositions") was filed by Arkema France on Oct 9, 2017. The application was issued on Oct 29, 2025.

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 DateRepresentative
THE CHEMOURS FCDec 15, 2022ABITZ & PARTNER

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

EP3523389

ARKEMA FRANCE
Application Number
EP17787238A
Filing Date
Oct 9, 2017
Status
Patent Maintained As Amended
Sep 26, 2025
Publication Date
Oct 29, 2025