Patent No. EP3275965 (titled "Compositions Comprising A Fluoroolefin") was filed by The Chemours FC on Mar 3, 2006. The application was issued on Dec 25, 2019.

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.
| Company | Opposition Date | Representative |
|---|---|---|
| AGC | Sep 25, 2020 | MULLER BORE & PARTNER PATENTANWALTE PARTG MBB |
| DAIKIN INDUSTRIES | Sep 25, 2020 | HOFFMANN EITLE |
| MEXICHEM FLUOR DE CV | Sep 25, 2020 | POTTER CLARKSON |
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.
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