Patent No. EP3587104 (titled "Coated Steel Strips, Method Of Making The Same, Stamped Products Prepared From The Same And Articles Of Manufacture Which Contain Such A Stamped Product") was filed by Arcelormittal on Oct 30, 2006. The application was issued on Mar 30, 2022.

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 |
|---|---|---|
| POSCO | Oct 14, 2022 | MEISSNER BOLTE PARTNERSCHAFT MBB |
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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