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The patent EP3627027 was granted to Nippon Steel on Sep 15, 2021. The application was filed on Apr 11, 2018 under application number EP18801387A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| TENARIS CONNECTIONS | Jun 15, 2022 | BOULT WADE TENNANT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JPH09126366 |
| INTERNATIONAL-SEARCH-REPORT | JP2000240862 |
| INTERNATIONAL-SEARCH-REPORT | JP2006526747 |
| INTERNATIONAL-SEARCH-REPORT | JP2010531418 |
| INTERNATIONAL-SEARCH-REPORT | JP2011501075 |
| INTERNATIONAL-SEARCH-REPORT | WO2009044851 |
| OPPOSITION | US2017101830 |
| OPPOSITION | US5687999 |
| OPPOSITION | US6347814 |
| OPPOSITION | WO2004109173 |
| OPPOSITION | WO2014014391 |
| OPPOSITION | WO2016108141 |
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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Sep 28, 2021
Sep 20, 2021
Document concerning representation
Search/Exam
Aug 19, 2021
Decision to grant a European patent
Search/Exam
Aug 4, 2021
(Electronic) Receipt
Search/Exam
Aug 4, 2021
Filing of the translations of the claims
Search/Exam
Aug 4, 2021
French translation of claims
Search/Exam
Aug 4, 2021
German translation of the claims
Search/Exam
Aug 4, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 4, 2021
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Intention to grant (signatures)
Search/Exam
Jun 4, 2021
Text intended for grant (clean copy)
Search/Exam
Jun 4, 2021
May 5, 2021
Examination started
Search/Exam
Apr 21, 2021
(Electronic) Receipt
Search/Exam
Apr 21, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 21, 2021
Matter concerning the application
Search/Exam
Feb 3, 2021
(Electronic) Receipt
Search/Exam
Feb 3, 2021
Feb 3, 2021
Amended claims with annotations
Search/Exam
Feb 3, 2021
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Amended description with annotations
Search/Exam
Feb 3, 2021
Amendments received before examination
Search/Exam
Feb 3, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 8, 2020
Nov 19, 2020
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European search opinion
Search/Exam
Nov 19, 2020
Information on Search Strategy
Search/Exam
Nov 19, 2020
Supplementary European search report
Search/Exam
Nov 9, 2020
Search started
Search/Exam
Feb 26, 2020
Notification of forthcoming publication
Search/Exam
Jan 3, 2020
Dec 20, 2019
Communication to designated inventor
Search/Exam
Dec 20, 2019
Communication to designated inventor
Search/Exam
Dec 20, 2019
Communication to designated inventor
Search/Exam
Dec 3, 2019
Dec 3, 2019
Nov 15, 2019
Nov 4, 2019
(Electronic) Receipt
Search/Exam
Nov 4, 2019
Abstract
Search/Exam
Nov 4, 2019
Claims
Search/Exam
Nov 4, 2019
Description
Search/Exam
Nov 4, 2019
Drawings
Search/Exam
Nov 4, 2019
Matter concerning the application
Search/Exam
Nov 4, 2019
Request for entry into the European phase
Search/Exam
Sep 27, 2019
Information on entry into European phase
Search/Exam
Apr 23, 2019
Notification of the recording of a change
Search/Exam
Dec 11, 2018
Nov 22, 2018
Copy of the international search report
Search/Exam
Nov 22, 2018
Nov 22, 2018
International publication pamphlet
Search/Exam