Patent No. EP2828090 (titled "Printing Method With Oxidative-Drying Intaglio Ink And Uv-Vis-Curable Intaglio Inks") was filed by Sicpa Holding on Mar 11, 2013. The application was issued on Aug 14, 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 |
|---|---|---|
| SUN CHEMICAL | Feb 10, 2017 | ABEL & IMRAY |
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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