Patent No. EP1737587 (titled "Method For Preparing Surface Data, Method And Device For Evaluating And Managing A Strip Material Quality") was filed by Parsytec Computer on Feb 25, 2005. The application was issued on Jun 8, 2016.

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 |
|---|---|---|
| THYSSENKRUPP STEEL EUROPE | Mar 8, 2017 | THYSSENKRUPP |
| VOESTALPINE STAHL | Mar 3, 2017 | PAUL ROSENICH |
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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