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The patent EP2216576 was granted to Nippon Steel & Sumitomo Metal on Sep 20, 2017. The application was filed on Dec 2, 2008 under application number EP08857920A. The patent is currently recorded with a legal status of "Revoked".

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 20, 2018 | AUGUST DEBOUZY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2003074763 |
| DESCRIPTION | WO2006075774 |
| DESCRIPTION | WO2006104251 |
| DESCRIPTION | WO2007042231 |
| INTERNATIONAL-SEARCH-REPORT | JP2004053013 |
| INTERNATIONAL-SEARCH-REPORT | JP3656481B |
| INTERNATIONAL-SEARCH-REPORT | JPH01199088 |
| INTERNATIONAL-SEARCH-REPORT | WO2006104251 |
| INTERNATIONAL-SEARCH-REPORT | WO2007042231 |
| OPPOSITION | EP1211451 |
| OPPOSITION | KR200261736Y |
| OPPOSITION | US2004022951 |
| OPPOSITION | US2006228505 |
| OPPOSITION | WO0228973 |
| OPPOSITION | WO2006104251 |
| OPPOSITION | WO2007042231 |
| OPPOSITION | WO2008032872 |
| SEARCH | EP1211451 |
| SEARCH | US2003159764 |
| SEARCH | US6027145 |
| SEARCH | WO2006104251 |
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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Jul 18, 2025
Refund of fees
Search/Exam
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Mar 6, 2025
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Appeal
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(Electronic) Receipt
Appeal
May 17, 2024
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Oct 31, 2023
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Notice of appeal
Appeal
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Appeal
Jun 27, 2022
Advice of delivery
Appeal
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(Electronic) Receipt
Appeal
Apr 29, 2020
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Notice of appeal
Appeal
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Aug 24, 2017
Decision to grant a European patent
Search/Exam
Jul 27, 2017
(Electronic) Receipt
Search/Exam
Jul 27, 2017
Filing of the translations of the claims
Search/Exam
Jul 27, 2017
German translation of the claims
Search/Exam
Jul 27, 2017
Letter accompanying subsequently filed items
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Jul 24, 2017
(Electronic) Receipt
Search/Exam
Jul 24, 2017
Filing of the translations of the claims
Search/Exam
Jul 24, 2017
French translation of claims
Search/Exam
Jul 24, 2017
German translation of the claims
Search/Exam
Jul 24, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 12, 2017
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Intention to grant (signatures)
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Apr 4, 2017
Text intended for grant (clean copy)
Search/Exam
Apr 4, 2017
Feb 21, 2017
Examination started
Search/Exam
Aug 19, 2016
(Electronic) Receipt
Search/Exam
Aug 19, 2016
Aug 19, 2016
Amended claims with annotations
Search/Exam
Aug 19, 2016
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Amended description with annotations
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Aug 19, 2016
Amendments received before examination
Search/Exam
Aug 19, 2016
Letter accompanying subsequently filed items
Search/Exam
Feb 26, 2016
Feb 10, 2016
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European search opinion
Search/Exam
Feb 10, 2016
Information on Search Strategy
Search/Exam
Feb 10, 2016
Supplementary European search report
Search/Exam
Jan 29, 2016
Search started
Search/Exam
May 6, 2015
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(Electronic) Receipt
Search/Exam
Apr 22, 2015
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Letter accompanying subsequently filed items
Search/Exam
Dec 5, 2013
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Annexes in respect of a client data request
Search/Exam
Nov 22, 2013
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Submission concerning representation
Search/Exam
Aug 24, 2010
Jul 16, 2010
Notification of forthcoming publication
Search/Exam
Jul 16, 2010
Reply by International Bureau
Search/Exam
Jul 13, 2010
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Enquiry with the International Bureau
Search/Exam
Jun 24, 2010
May 26, 2010
Abstract
Search/Exam
May 26, 2010
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May 26, 2010
Amendments received before examination
Search/Exam
May 26, 2010
Request for entry into the European phase
Search/Exam
Apr 16, 2010
Information on entry into European phase
Search/Exam
Jul 1, 2009
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Jun 11, 2009
Copy of the international search report
Search/Exam
Jun 11, 2009
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International publication pamphlet
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