Patent No. EP2178814 (titled "Method For Producing Fluorinated Olefins") was filed by Honeywell on Aug 22, 2008. The application was issued on Nov 29, 2017.

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 |
|---|---|---|
| SINO RESOURCE IMP & EXP | Jan 16, 2019 | COHAUSZ & FLORACK |
| ZHEJIANG HUANXIN FLUORO MATERIAL | Jan 16, 2019 | DOMPATENT VON KREISLER SELTING WERNER |
| ZHEJIANG HUANXIN FLUORO MATERIAL | Jan 16, 2019 | DOMPATENT VON PATENT UND RECHTSANWALTEN |
| MEXICHEM FLUOR DE CV | Aug 29, 2018 | POTTER CLARKSON |
| ARKEMA FRANCE | Aug 27, 2018 | ARKEMA PATENT |
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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