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The patent EP2947168 was granted to Kabushiki Kaisha Kobe Seiko SHO Kobe Steel on Mar 7, 2018. The application was filed on Jan 15, 2014 under application number EP14740895A. 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 |
|---|---|---|---|
| SAARSTAHL | Dec 7, 2018 | PATENTANWALTSKANZLEI VIEL & WIESKE PARTGMBB | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2898472B |
| DESCRIPTION | JP4134204B |
| DESCRIPTION | JP4347786B |
| DESCRIPTION | JP4423050B |
| DESCRIPTION | JPH0674484B |
| DESCRIPTION | JPH0674485B |
| DESCRIPTION | JPH076037B |
| INTERNATIONAL-SEARCH-REPORT | JP2008163424 |
| INTERNATIONAL-SEARCH-REPORT | JP2009275262 |
| INTERNATIONAL-SEARCH-REPORT | JP2010024539 |
| INTERNATIONAL-SEARCH-REPORT | JPH0234748 |
| INTERNATIONAL-SEARCH-REPORT | JPH10130714 |
| INTERNATIONAL-SEARCH-REPORT | WO0077271 |
| SEARCH | EP1662016 |
| SEARCH | EP2028285 |
| SEARCH | EP2123784 |
| SEARCH | EP2143812 |
| SEARCH | EP2163657 |
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.
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Mar 19, 2018
Feb 8, 2018
Decision to grant a European patent
Search/Exam
Jan 3, 2018
Filing of the translations of the claims
Search/Exam
Jan 3, 2018
French translation of claims
Search/Exam
Jan 3, 2018
German translation of the claims
Search/Exam
Sep 13, 2017
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Intention to grant (signatures)
Search/Exam
Sep 13, 2017
Text intended for grant (clean copy)
Search/Exam
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Aug 18, 2017
Examination started
Search/Exam
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Amended claims with annotations
Search/Exam
Jan 17, 2017
Amendments received before examination
Search/Exam
Jul 29, 2016
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European search opinion
Search/Exam
Jul 12, 2016
Information on Search Strategy
Search/Exam
Jul 12, 2016
Supplementary European search report
Search/Exam
Jun 29, 2016
Search started
Search/Exam
Oct 28, 2015
Notification of forthcoming publication
Search/Exam
Aug 21, 2015
Aug 19, 2015
Communication to designated inventor
Search/Exam
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Aug 3, 2015
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Letter concerning fees and payments
Search/Exam
Jul 16, 2015
Payment of fees and costs
Search/Exam
Jul 10, 2015
Abstract
Search/Exam
Jul 10, 2015
Claims
Search/Exam
Jul 10, 2015
Description
Search/Exam
Jul 10, 2015
Designation of inventor
Search/Exam
Jul 10, 2015
Request for entry into the European phase
Search/Exam
Jul 10, 2015
Request for grant of a European patent
Search/Exam
May 29, 2015
Information on entry into European phase
Search/Exam
Aug 13, 2014
Jul 24, 2014
Copy of the international search report
Search/Exam
Jul 24, 2014
Jul 24, 2014
International publication pamphlet
Search/Exam