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The patent EP2831299 was granted to Kobe Steel on Apr 29, 2020. The application was filed on Apr 2, 2013 under application number EP13717208A. 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 | Jun 12, 2018 | GROUP SERVICES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2009238713 |
| EXAMINATION | US2008251161 |
| INTERNATIONAL-SEARCH-REPORT | JP2004332099 |
| INTERNATIONAL-SEARCH-REPORT | WO2011118126 |
| INTERNATIONAL-SEARCH-REPORT | WO2011148490 |
| OPPOSITION | CA2713195 |
| OPPOSITION | EP2831299 |
| OPPOSITION | GB2452230 |
| OPPOSITION | GB2493302 |
| OPPOSITION | JP2004332099 |
| OPPOSITION | WO2013144373 |
| OPPOSITION | WO2013144376 |
| OPPOSITION | WO2013144377 |
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.
Date
Description
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Apr 2, 2020
Apr 2, 2020
Mar 27, 2020
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Description
OPPO
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Claims
OPPO
Jan 24, 2019
Claims
OPPO
Jan 24, 2019
Claims
OPPO
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OPPO
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Sep 14, 2017
Aug 18, 2017
Decision to grant a European patent
Search/Exam
Jul 31, 2017
(Electronic) Receipt
Search/Exam
Jul 31, 2017
Filing of the translations of the claims
Search/Exam
Jul 31, 2017
French translation of claims
Search/Exam
Jul 31, 2017
German translation of the claims
Search/Exam
Apr 5, 2017
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Intention to grant (signatures)
Search/Exam
Apr 5, 2017
Text intended for grant (clean copy)
Search/Exam
Apr 5, 2017
Oct 4, 2016
(Electronic) Receipt
Search/Exam
Oct 4, 2016
Claims
Search/Exam
Oct 4, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 4, 2016
Sep 26, 2016
Annex to the communication
Search/Exam
Sep 26, 2016
Communication from the Examining Division
Search/Exam
Sep 19, 2016
Examination started
Search/Exam
Mar 10, 2015
(Electronic) Receipt
Search/Exam
Mar 10, 2015
Letter accompanying subsequently filed items
Search/Exam
Mar 10, 2015
Reply to Written Opinion prepared by the EPO
Search/Exam
Feb 10, 2015
Jan 8, 2015
Nov 25, 2014
(Electronic) Receipt
Search/Exam
Nov 25, 2014
Authorisation
Search/Exam
Nov 25, 2014
Letter accompanying subsequently filed items
Search/Exam
Nov 25, 2014
Nov 6, 2014
Nov 4, 2014
Communication to designated inventor
Search/Exam
Nov 4, 2014
Communication to designated inventor
Search/Exam
Nov 4, 2014
Communication to designated inventor
Search/Exam
Nov 4, 2014
Communication to designated inventor
Search/Exam
Oct 14, 2014
Comments on Written Opinion of ISA
Search/Exam
Oct 14, 2014
Sep 19, 2014
Sep 19, 2014
Notification of the recording of a change
Search/Exam
Aug 21, 2014
(Electronic) Receipt
Search/Exam
Aug 21, 2014
Request for entry into the European phase
Search/Exam
Aug 8, 2014
Information on entry into European phase
Search/Exam
Oct 22, 2013
Oct 3, 2013
Copy of the international search report
Search/Exam
Oct 3, 2013
Published international application - A1
Search/Exam
Jul 19, 2013
Jul 19, 2013
Jul 19, 2013
Apr 2, 2013
(Electronic) Receipt
PCTRO
Apr 2, 2013
Abstract
PCTRO
Apr 2, 2013
Claims
PCTRO
Apr 2, 2013
Description
PCTRO