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The patent EP3632585 was granted to Posco on Apr 24, 2024. The application was filed on May 31, 2018 under application number EP18808695A. 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 | Jan 21, 2025 | LAVOIX | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US6296805 |
| INTERNATIONAL-SEARCH-REPORT | JP2004043887 |
| INTERNATIONAL-SEARCH-REPORT | KR101536703B |
| INTERNATIONAL-SEARCH-REPORT | KR101569505B |
| INTERNATIONAL-SEARCH-REPORT | KR101696121B |
| INTERNATIONAL-SEARCH-REPORT | KR20150073021 |
| OPPOSITION | CA2933039 |
| OPPOSITION | EP2520686 |
| OPPOSITION | EP2695963 |
| OPPOSITION | EP3396010 |
| OPPOSITION | JP2004176181 |
| OPPOSITION | JP2012092365 |
| OPPOSITION | US2011056594 |
| OPPOSITION | US2016024610 |
| OPPOSITION | WO2016034476 |
| OPPOSITION | WO2017182382 |
| SEARCH | EP2312005 |
| SEARCH | EP3396010 |
| SEARCH | KR101696121B |
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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Authorisation
OPPO
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May 8, 2024
Mar 28, 2024
Decision to grant a European patent
Search/Exam
Mar 18, 2024
(Electronic) Receipt
Search/Exam
Mar 18, 2024
Filing of the translations of the claims
Search/Exam
Mar 18, 2024
French translation of claims
Search/Exam
Mar 18, 2024
German translation of the claims
Search/Exam
Mar 18, 2024
Letter accompanying subsequently filed items
Search/Exam
Nov 24, 2023
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Intention to grant (signatures)
Search/Exam
Nov 24, 2023
Text intended for grant (clean copy)
Search/Exam
Nov 24, 2023
Nov 13, 2023
Examination started
Search/Exam
Mar 24, 2023
Mar 20, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 20, 2023
Jan 31, 2023
Jan 18, 2023
(Electronic) Receipt
Search/Exam
Jan 18, 2023
Enquiry as to the processing of the file
Search/Exam
Jan 18, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 11, 2023
Jan 4, 2023
Annexes in respect of a client data request
Search/Exam
Jan 4, 2023
Annexes in respect of a client data request
Search/Exam
Jan 4, 2023
Dec 16, 2022
(Electronic) Receipt
Search/Exam
Dec 16, 2022
Letter accompanying subsequently filed items
Search/Exam
Nov 10, 2022
Oct 26, 2022
Annexes in respect of a client data request
Search/Exam
Oct 26, 2022
Annexes in respect of a client data request
Search/Exam
Oct 26, 2022
General authorisation
Search/Exam
Oct 26, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 26, 2022
Oct 20, 2022
Sep 28, 2022
Annexes in respect of a client data request
Search/Exam
Sep 28, 2022
Annexes in respect of a client data request
Search/Exam
Sep 28, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 28, 2022
Jun 7, 2021
Jun 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 1, 2021
May 17, 2021
Letter accompanying subsequently filed items
Search/Exam
May 17, 2021
Dec 18, 2020
(Electronic) Receipt
Search/Exam
Dec 18, 2020
Dec 18, 2020
Amended claims with annotations
Search/Exam
Dec 18, 2020
Dec 18, 2020
Amended description with annotations
Search/Exam
Dec 18, 2020
Amendments received before examination
Search/Exam
Dec 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 18, 2020
Jun 18, 2020
Jun 12, 2020
Letter which had not been notified
Search/Exam
Jun 12, 2020
Letter which had not been notified
Search/Exam
Jun 8, 2020
May 19, 2020
May 19, 2020
European search opinion
Search/Exam
May 19, 2020
Information on Search Strategy
Search/Exam
May 19, 2020
Supplementary European search report
Search/Exam
Apr 30, 2020
Search started
Search/Exam
Mar 11, 2020
Notification of forthcoming publication
Search/Exam
Jan 22, 2020
Communication to designated inventor
Search/Exam
Jan 22, 2020
Communication to designated inventor
Search/Exam
Jan 22, 2020
Communication to designated inventor
Search/Exam
Dec 18, 2019
(Electronic) Receipt
Search/Exam
Dec 18, 2019
Abstract
Search/Exam
Dec 18, 2019
Claims
Search/Exam
Dec 18, 2019
Description
Search/Exam
Dec 18, 2019
Drawings
Search/Exam
Dec 18, 2019
Request for entry into the European phase
Search/Exam
Dec 17, 2019
Dec 17, 2019
Oct 11, 2019
Information on entry into European phase
Search/Exam
Jan 8, 2019
Jan 8, 2019
Dec 6, 2018
Copy of the international search report
Search/Exam
Dec 6, 2018
Dec 6, 2018
International publication pamphlet
Search/Exam