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The patent EP3164521 was granted to Arcelormittal on Apr 19, 2023. The application was filed on Jul 3, 2015 under application number EP15750814A. 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 |
|---|---|---|---|
| THYSSENKRUPP STEEL EUROPE | Jun 12, 2019 | COHAUSZ & FLORACK | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2014009376 |
| INTERNATIONAL-SEARCH-REPORT | JP2014034716 |
| INTERNATIONAL-SEARCH-REPORT | JP4324225B |
| INTERNATIONAL-SEARCH-REPORT | WO2012153016 |
| INTERNATIONAL-SEARCH-REPORT | WO2014061270 |
| OPPOSITION | EP2325346 |
| OPPOSITION | EP2881481 |
| OPPOSITION | JP2014009376 |
| OPPOSITION | WO2012156428 |
| OPPOSITION | WO2014020640 |
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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Mar 23, 2023
Mar 23, 2023
Mar 16, 2023
Dec 6, 2022
Dec 6, 2022
Description
OPPO
Dec 6, 2022
Dec 6, 2022
Dec 6, 2022
Dec 6, 2022
Oct 20, 2022
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Oct 18, 2022
Oct 18, 2022
Refund of fees
Search/Exam
Oct 14, 2022
Oct 14, 2022
Oct 14, 2022
Oct 14, 2022
Oct 14, 2022
Oct 13, 2022
Oct 11, 2022
Oct 10, 2022
(Electronic) Receipt
Search/Exam
Oct 10, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 10, 2022
Letter dealing with oral proceedings
Search/Exam
Oct 6, 2022
Oct 6, 2022
Oct 5, 2022
(Electronic) Receipt
Appeal
Oct 5, 2022
(Electronic) Receipt
Appeal
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Oct 5, 2022
Sep 21, 2022
Sep 21, 2022
Sep 12, 2022
Sep 12, 2022
Sep 9, 2022
(Electronic) Receipt
Appeal
Sep 9, 2022
(Electronic) Receipt
Appeal
Sep 9, 2022
Sep 9, 2022
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Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
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Feb 4, 2022
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Feb 3, 2022
(Electronic) Receipt
Appeal
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Jan 28, 2022
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Jan 25, 2022
Jan 25, 2022
Jul 26, 2021
Jul 21, 2021
(Electronic) Receipt
Appeal
Jul 21, 2021
Jul 21, 2021
Jul 21, 2021
Jul 21, 2021
Jul 21, 2021
Jul 21, 2021
Claims
Appeal
Jul 21, 2021
Jul 21, 2021
Jul 21, 2021
Reply to appeal
Appeal
Apr 6, 2021
Mar 30, 2021
(Electronic) Receipt
Appeal
Mar 30, 2021
Mar 30, 2021
Mar 30, 2021
Mar 5, 2021
Jan 27, 2021
Jan 27, 2021
Jan 19, 2021
(Electronic) Receipt
Appeal
Jan 19, 2021
Jan 19, 2021
Notice of appeal
Appeal
Dec 1, 2020
Nov 26, 2020
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Means of redress
OPPO
Nov 20, 2020
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Description
OPPO
Jul 16, 2020
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Sep 24, 2018
Aug 17, 2018
Decision to grant a European patent
Search/Exam
Jul 2, 2018
(Electronic) Receipt
Search/Exam
Jul 2, 2018
Filing of the translations of the claims
Search/Exam
Jul 2, 2018
French translation of claims
Search/Exam
Jul 2, 2018
German translation of the claims
Search/Exam
Jul 2, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 5, 2018
Mar 5, 2018
Mar 5, 2018
Intention to grant (signatures)
Search/Exam
Mar 5, 2018
Text intended for grant (clean copy)
Search/Exam
Mar 5, 2018
Jan 18, 2018
Examination started
Search/Exam
Apr 12, 2017
Feb 10, 2017
Feb 8, 2017
Communication to designated inventor
Search/Exam
Feb 8, 2017
Communication to designated inventor
Search/Exam
Feb 3, 2017
Priority search results copy provided by EPO
Search/Exam
Jan 16, 2017
Jan 2, 2017
(Electronic) Receipt
Search/Exam
Jan 2, 2017
Jan 2, 2017
Amended claims with annotations
Search/Exam
Jan 2, 2017
Request for entry into the European phase
Search/Exam
Nov 11, 2016
Information on entry into European phase
Search/Exam
Jan 26, 2016
Jan 7, 2016
Copy of the international search report
Search/Exam
Jan 7, 2016
Published international application - A1
Search/Exam
Nov 25, 2015
Nov 25, 2015
Nov 25, 2015