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The patent EP3150880 was granted to NHK Spring on Jan 30, 2019. The application was filed on May 28, 2014 under application number EP14893187A. 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 |
|---|---|---|---|
| VERBAND DER DEUTSCHEN FEDERNINDUSTRIE EV VDFI | Oct 30, 2019 | HAVERKAMP PATENTANWALTE PARTG 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 | EP1201773 |
| INTERNATIONAL-SEARCH-REPORT | JP2002257169 |
| INTERNATIONAL-SEARCH-REPORT | JP2004050906 |
| INTERNATIONAL-SEARCH-REPORT | JP2012057777 |
| INTERNATIONAL-SEARCH-REPORT | JPH04304 |
| INTERNATIONAL-SEARCH-REPORT | JPH10146634 |
| INTERNATIONAL-SEARCH-REPORT | JPS59219534 |
| INTERNATIONAL-SEARCH-REPORT | JPS6376730 |
| INTERNATIONAL-SEARCH-REPORT | WO2014077327 |
| OPPOSITION | EP1201773 |
| OPPOSITION | EP2444203 |
| OPPOSITION | EP2682493 |
| OPPOSITION | JP2000103216 |
| OPPOSITION | JP2002168278 |
| OPPOSITION | JP2002257169 |
| OPPOSITION | JP2004050906 |
| OPPOSITION | JP2005171297 |
| OPPOSITION | JP2006022402 |
| OPPOSITION | JP2007308067 |
| OPPOSITION | JP2010255742 |
| OPPOSITION | JP2011000663 |
| OPPOSITION | JP2011131338 |
| OPPOSITION | JP2012057777 |
| OPPOSITION | JPH04304 |
| OPPOSITION | JPH0531671 |
| OPPOSITION | JPH10146634 |
| OPPOSITION | JPS59219534 |
| OPPOSITION | JPS6113038 |
| OPPOSITION | JPS6376730 |
| OPPOSITION | US6022427 |
| OPPOSITION | WO2014077327 |
| SEARCH | EP2444203 |
| SEARCH | JP2006022402 |
| SEARCH | US6022427 |
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
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OPPO
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Decision to grant a European patent
Search/Exam
Dec 12, 2018
(Electronic) Receipt
Search/Exam
Dec 12, 2018
Filing of the translations of the claims
Search/Exam
Dec 12, 2018
French translation of claims
Search/Exam
Dec 12, 2018
German translation of the claims
Search/Exam
Dec 12, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 22, 2018
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Intention to grant (signatures)
Search/Exam
Aug 22, 2018
Text intended for grant (clean copy)
Search/Exam
Aug 22, 2018
Aug 6, 2018
(Electronic) Receipt
Search/Exam
Aug 6, 2018
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Letter accompanying subsequently filed items
Search/Exam
Aug 6, 2018
Matter concerning the application
Search/Exam
Jul 31, 2018
Jul 26, 2018
Examination started
Search/Exam
Jul 2, 2018
(Electronic) Receipt
Search/Exam
Jul 2, 2018
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Amended claims with annotations
Search/Exam
Jul 2, 2018
Amended description with annotations
Search/Exam
Jul 2, 2018
Amendments received before examination
Search/Exam
Jul 2, 2018
Annex
Search/Exam
Jul 2, 2018
Letter accompanying subsequently filed items
Search/Exam
May 17, 2018
Submission concerning representation
Search/Exam
Jan 9, 2018
Dec 21, 2017
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European search opinion
Search/Exam
Dec 21, 2017
Information on Search Strategy
Search/Exam
Dec 21, 2017
Supplementary European search report
Search/Exam
Dec 11, 2017
Search started
Search/Exam
Mar 8, 2017
Notification of forthcoming publication
Search/Exam
Jan 9, 2017
Jan 4, 2017
Communication to designated inventor
Search/Exam
Jan 4, 2017
Communication to designated inventor
Search/Exam
Dec 12, 2016
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Refund of fees
Search/Exam
Jan 7, 2016
Information regarding early processing
Search/Exam
Dec 16, 2015
(Electronic) Receipt
Search/Exam
Dec 16, 2015
Abstract
Search/Exam
Dec 16, 2015
Claims
Search/Exam
Dec 16, 2015
Description
Search/Exam
Dec 16, 2015
Drawings
Search/Exam
Dec 16, 2015
Request for entry into the European phase
Search/Exam
Dec 3, 2015
Copy of the international search report
Search/Exam
Dec 3, 2015
Dec 3, 2015
International publication pamphlet
Search/Exam