Patent No. EP2069572 (titled "Improved Uv Varnish Gloss Performance Using Novel Pigment And Process For Making Same") was filed by Specialty Minerals Michigan on Aug 17, 2007. The application was issued on Aug 22, 2018.

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 |
|---|---|---|
| OMYA | Dec 18, 2015 | BOOS |
| SCHAEFER KALK | Dec 17, 2015 | MAI BESIER |
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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