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The patent EP3408334 was granted to Tata Steel UK on May 13, 2020. The application was filed on Dec 19, 2016 under application number EP16810434A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 | Feb 10, 2021 | LAVOIX | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP2639329 |
| INTERNATIONAL-SEARCH-REPORT | EP2939979 |
| INTERNATIONAL-SEARCH-REPORT | WO2015160764 |
| OPPOSITION | US2007286953 |
| OPPOSITION | US2010098956 |
| OPPOSITION | WO2009059798 |
| OPPOSITION | WO2015160764 |
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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Description
OPPO
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(Electronic) Receipt
Appeal
Nov 26, 2024
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Feb 27, 2023
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(Electronic) Receipt
Appeal
Nov 9, 2022
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(Electronic) Receipt
Appeal
Oct 4, 2022
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Notice of appeal
Appeal
Aug 10, 2022
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Means of redress
OPPO
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Apr 17, 2020
Decision to grant a European patent
Search/Exam
Apr 3, 2020
(Electronic) Receipt
Search/Exam
Apr 3, 2020
French translation of claims
Search/Exam
Apr 3, 2020
German translation of the claims
Search/Exam
Apr 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 8, 2020
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Intention to grant (signatures)
Search/Exam
Jan 8, 2020
Text intended for grant (clean copy)
Search/Exam
Jan 8, 2020
Oct 11, 2019
(Electronic) Receipt
Search/Exam
Oct 11, 2019
Amended claims with annotations
Search/Exam
Oct 11, 2019
Claims
Search/Exam
Oct 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 11, 2019
Jul 8, 2019
Jun 27, 2019
Jun 11, 2019
Annex to the communication
Search/Exam
Jun 11, 2019
Communication from the Examining Division
Search/Exam
Jun 3, 2019
Examination started
Search/Exam
Mar 13, 2019
(Electronic) Receipt
Search/Exam
Mar 13, 2019
Mar 13, 2019
Amended claims with annotations
Search/Exam
Mar 13, 2019
Amendments received before examination
Search/Exam
Mar 13, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 7, 2018
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Communication to designated inventor
Search/Exam
Sep 5, 2018
Communication to designated inventor
Search/Exam
Sep 5, 2018
Communication to designated inventor
Search/Exam
Sep 5, 2018
Communication to designated inventor
Search/Exam
Sep 5, 2018
Communication to designated inventor
Search/Exam
Sep 5, 2018
Communication to designated inventor
Search/Exam
Aug 16, 2018
Jun 13, 2018
Information regarding early processing
Search/Exam
May 8, 2018
(Electronic) Receipt
Search/Exam
May 8, 2018
Request for entry into the European phase
Search/Exam
Sep 19, 2017
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Notification of the recording of a change
Search/Exam
Sep 19, 2017
Notification of the recording of a change
Search/Exam
Sep 19, 2017
Notification of the recording of a change
Search/Exam
Sep 5, 2017
(Electronic) Receipt
PCTRO
Sep 5, 2017
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Copy of the international search report
Search/Exam
Aug 3, 2017
Published international application - A1
Search/Exam
Feb 2, 2017
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Dec 19, 2016
(Electronic) Receipt
PCTRO
Dec 19, 2016
Abstract
PCTRO
Dec 19, 2016
Claims
PCTRO
Dec 19, 2016
Description
PCTRO
Dec 19, 2016
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Drawings
PCTRO
Dec 19, 2016
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