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The patent EP2690078 was granted to Calderys France on May 9, 2018. The application was filed on Jul 27, 2012 under application number EP12290259A. The patent is currently recorded with a legal status of "Revoked".

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 | Opposition Status |
|---|---|---|---|
| REFRATECHNIK HOLDING | Feb 11, 2019 | DR SOLF & ZAPF PATENT UND RECHTSANWALTS PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
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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Description
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Request for grant of a European patent
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Request for grant of a European patent
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