Patent No. EP2841613 (titled "Methods For Producing A Pre-Lacquered Metal Sheet Having Zn-Al-Mg Coatings, And Corresponding Metal Sheet") was filed by Arcelormittal on Apr 25, 2013. The application was issued on Nov 20, 2024.

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 |
|---|---|---|
| HENKEL | Sep 19, 2019 | - |
| THYSSENKRUPP STEEL EUROPE | Sep 19, 2019 | THYSSENKRUPP STEEL EUROPE |
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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