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The patent EP3290199 was granted to Arcelormittal on Oct 15, 2025. The application was filed on Oct 30, 2006 under application number EP17192410A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Opposition Status |
|---|---|---|---|
| TATA STEEL IJMUIDEN | May 21, 2020 | GROUP SERVICES | ADMISSIBLE |
| VOLKSWAGEN | May 21, 2020 | LIEBL | ADMISSIBLE |
| SALZGITTER FLACHSTAHL | May 20, 2020 | MOSER GOTZE & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US6296805 |
| EXAMINATION | EP1380666 |
| OPPOSITION | DE102004007071 |
| OPPOSITION | DE69933751T |
| OPPOSITION | EP1380666 |
| OPPOSITION | EP2086755 |
| OPPOSITION | EP3290199 |
| OPPOSITION | FR2833504 |
| OPPOSITION | US2001042393 |
| OPPOSITION | US6296805 |
| OPPOSITION | WO2008053273 |
| SEARCH | EP0356783 |
| SEARCH | EP1013785 |
| SEARCH | EP1336666 |
| SEARCH | FR2720079 |
| SEARCH | FR2758571 |
| SEARCH | US6296805 |
| SEARCH | WO2006097593 |
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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Description
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Sep 2, 2019
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Decision to grant a European patent
Search/Exam
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(Electronic) Receipt
Search/Exam
Jul 9, 2019
Filing of the translations of the claims
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Jul 9, 2019
French translation of claims
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German translation of the claims
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Jul 9, 2019
Letter accompanying subsequently filed items
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Apr 3, 2019
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Apr 3, 2019
Jan 28, 2019
(Electronic) Receipt
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Jan 28, 2019
Amended claims with annotations
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Jan 28, 2019
Amended description with annotations
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Jan 28, 2019
Claims
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Jan 28, 2019
Description
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Jan 28, 2019
Letter accompanying subsequently filed items
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Jan 28, 2019
Jan 2, 2019
Annex to the communication
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Jan 2, 2019
Consultation by telephone/in person
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Jan 2, 2019
Dec 11, 2018
Annex to the communication
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Dec 11, 2018
Communication from the Examining Division
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Dec 6, 2018
Examination started
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Sep 6, 2018
(Electronic) Receipt
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Sep 6, 2018
Letter accompanying subsequently filed items
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Sep 6, 2018
Reply to Written Opinion prepared by the EPO
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Mar 12, 2018
Feb 21, 2018
Refund of fees
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Feb 7, 2018
Feb 7, 2018
European search opinion
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Feb 7, 2018
European search report
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Feb 7, 2018
Information on Search Strategy
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Feb 7, 2018
Notification of forthcoming publication
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Jan 24, 2018
Search started
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Dec 21, 2017
Dec 14, 2017
Letter which had not been notified
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Dec 7, 2017
Nov 29, 2017
Letter which had not been notified
Search/Exam
Nov 14, 2017
Communication to designated inventor
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Nov 14, 2017
Communication to designated inventor
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Nov 14, 2017
Communication to designated inventor
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Sep 21, 2017
Abstract
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Sep 21, 2017
Sep 21, 2017
Claims
Search/Exam
Sep 21, 2017
Description
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Sep 21, 2017
Designation of inventor
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Sep 21, 2017
Drawings
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Sep 21, 2017
Request for grant of a European patent
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