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The patent EP3163129 was granted to Kabushiki Kaisha Riken on Oct 14, 2020. The application was filed on Jun 25, 2015 under application number EP15811150A. 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 |
|---|---|---|---|
| FEDERAL MOGUL BURSCHEID | Jul 13, 2021 | BECKER KURIG & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2005273583 |
| INTERNATIONAL-SEARCH-REPORT | JPH06185620 |
| OPPOSITION | DE102012013803 |
| OPPOSITION | DE1021666 |
| OPPOSITION | JP2006336744 |
| OPPOSITION | JP2011169388 |
| OPPOSITION | JPS57196238U |
| OPPOSITION | SU1511502 |
| OPPOSITION | US2012205876 |
| OPPOSITION | US2013181411 |
| OPPOSITION | US5695199 |
| OPPOSITION | US7431305 |
| OPPOSITION | US8157268 |
| OPPOSITION | US8739753 |
| SEARCH | DE4429649 |
| SEARCH | JP2002039384 |
| SEARCH | US2013181411 |
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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OPPO
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Request concerning representative opponent
Search/Exam
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Oct 26, 2020
Sep 17, 2020
Decision to grant a European patent
Search/Exam
Sep 7, 2020
(Electronic) Receipt
Search/Exam
Sep 7, 2020
Filing of the translations of the claims
Search/Exam
Sep 7, 2020
French translation of claims
Search/Exam
Sep 7, 2020
German translation of the claims
Search/Exam
Sep 7, 2020
Letter accompanying subsequently filed items
Search/Exam
May 7, 2020
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Intention to grant (signatures)
Search/Exam
May 7, 2020
Text intended for grant (clean copy)
Search/Exam
May 7, 2020
Mar 13, 2020
Examination started
Search/Exam
Nov 28, 2018
Submission concerning representation
Search/Exam
Sep 5, 2018
(Electronic) Receipt
Search/Exam
Sep 5, 2018
Sep 5, 2018
Amended claims with annotations
Search/Exam
Sep 5, 2018
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Amended description with annotations
Search/Exam
Sep 5, 2018
Amendments received before examination
Search/Exam
Sep 5, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 6, 2018
Feb 15, 2018
Feb 15, 2018
European search opinion
Search/Exam
Feb 15, 2018
Information on Search Strategy
Search/Exam
Feb 15, 2018
Supplementary European search report
Search/Exam
Feb 7, 2018
Search started
Search/Exam
Apr 5, 2017
Notification of forthcoming publication
Search/Exam
Feb 10, 2017
Feb 8, 2017
Communication to designated inventor
Search/Exam
Feb 8, 2017
Communication to designated inventor
Search/Exam
Feb 8, 2017
Communication to designated inventor
Search/Exam
Jan 19, 2017
(Electronic) Receipt
Search/Exam
Jan 19, 2017
Abstract
Search/Exam
Jan 19, 2017
Abstract
Search/Exam
Jan 19, 2017
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Annex
Search/Exam
Jan 19, 2017
Claims
Search/Exam
Jan 19, 2017
Description
Search/Exam
Jan 19, 2017
Drawings
Search/Exam
Jan 19, 2017
Request for entry into the European phase
Search/Exam
Jan 11, 2017
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Nov 4, 2016
Information on entry into European phase
Search/Exam
Sep 1, 2016
Copy of the international search report
Search/Exam
Sep 1, 2016
Jan 19, 2016
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Dec 30, 2015
Copy of the international search report
Search/Exam
Dec 30, 2015
Dec 30, 2015
International publication pamphlet
Search/Exam