Patent No. EP2433798 (titled "System And Method For Orienting Magnetic Flakes Contained In An Ink Or Varnish Vehicle Applied On A Sheet-Like Or Web-Like Substrate") was filed by KBA Notasys on Sep 24, 2010. The application was issued on Apr 8, 2015.

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 |
|---|---|---|
| OBERTHUR FIDUCIAIRE | Nov 3, 2016 | REGIMBEAU |
| ECKART | Jan 8, 2016 | WALCHER |
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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