Patent No. EP3293242 (titled "Compositions Comprising Hfc-1234Yf") was filed by The Chemours FC on Mar 3, 2006. The application was issued on Jul 3, 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 |
|---|---|---|
| SUZUKI MOTOR | Aug 30, 2022 | AUGUST DEBOUZY |
| SUZUKI FRANCE | Jun 3, 2022 | AUGUST DEBOUZY |
| MEXICHEM FLUOR DE CV | Apr 3, 2020 | POTTER CLARKSON |
| AGC | Apr 2, 2020 | MULLER BORE & PARTNER PATENTANWALTE PARTG MBB |
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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