Patent No. EP2888385 (titled "Coated Steel Strip Or Sheet Having Advantageous Properties") was filed by Tata Steel Ijmuiden on Aug 19, 2013. The application was issued on Nov 13, 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 |
|---|---|---|
| CHEMETALL | Jan 10, 2019 | STEFFAN & KIEHNE PATENTANWALTE PARTG MBB |
| ARCELORMITTAL FRANCE | Oct 10, 2018 | LAVOIX |
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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