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The patent EP2447383 was granted to Nippon Steel on Dec 19, 2018. The application was filed on Apr 14, 2010 under application number EP10791775A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| ARCELORMITTAL | Sep 18, 2019 | PLAISANT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2002302737 |
| DESCRIPTION | JP2004076112 |
| DESCRIPTION | JPH06279928 |
| DESCRIPTION | JPS63128123 |
| INTERNATIONAL-SEARCH-REPORT | JP2003105499 |
| INTERNATIONAL-SEARCH-REPORT | JP2003129180 |
| OPPOSITION | EP2006406 |
| OPPOSITION | JP2000178690 |
| OPPOSITION | JP2000345296 |
| OPPOSITION | JP2003129180 |
| OPPOSITION | JP2005350723 |
| SEARCH | CA2645858 |
| SEARCH | JP2000178690 |
| SEARCH | JP2000345296 |
| SEARCH | JP2002226915 |
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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Nov 22, 2018
Decision to grant a European patent
Search/Exam
Oct 30, 2018
Oct 10, 2018
(Electronic) Receipt
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Oct 10, 2018
Filing of the translations of the claims
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Oct 10, 2018
French translation of claims
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Oct 10, 2018
German translation of the claims
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Oct 10, 2018
Letter accompanying subsequently filed items
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Jun 14, 2018
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Intention to grant (signatures)
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Jun 14, 2018
Text intended for grant (clean copy)
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Jun 14, 2018
Mar 19, 2018
Amended claims with annotations
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Mar 19, 2018
Amended description with annotations
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Mar 19, 2018
Claims
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Mar 19, 2018
Description
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Mar 19, 2018
Dec 18, 2017
Annex to the communication
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Dec 18, 2017
Communication from the Examining Division
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Dec 13, 2017
Examination started
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Sep 7, 2017
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Amended claims with annotations
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Sep 7, 2017
Amendments received before examination
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May 29, 2017
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European search opinion
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May 9, 2017
Information on Search Strategy
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May 9, 2017
Supplementary European search report
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Apr 25, 2017
Search started
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Mar 12, 2015
Submission concerning representation
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Jan 7, 2015
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Dec 11, 2012
Apr 4, 2012
Notification of forthcoming publication
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Feb 15, 2012
Feb 1, 2012
Jan 16, 2012
Dec 15, 2011
(Electronic) Receipt
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Dec 15, 2011
Abstract
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Dec 15, 2011
Claims
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Dec 15, 2011
Description
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Dec 15, 2011
Drawings
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Dec 15, 2011
Matter concerning the application
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Dec 15, 2011
Request for entry into the European phase
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Nov 3, 2011
Information on entry into European phase
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Jan 18, 2011
Dec 29, 2010
Copy of the international search report
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Dec 29, 2010
Dec 29, 2010
International publication pamphlet
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