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The patent EP3379075 was granted to Beijing Goldwind Science & Creation Windpower Equipment on Oct 1, 2025. The application was filed on Aug 2, 2017 under application number EP17860558A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| VESTAS WIND SYSTEMS | Dec 10, 2021 | SAMSON & PARTNER PATENTANWALTE MBB | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN101088207 |
| INTERNATIONAL-SEARCH-REPORT | CN101702582 |
| INTERNATIONAL-SEARCH-REPORT | CN102651556 |
| INTERNATIONAL-SEARCH-REPORT | CN102801239 |
| INTERNATIONAL-SEARCH-REPORT | CN105356629 |
| INTERNATIONAL-SEARCH-REPORT | CN106286129 |
| INTERNATIONAL-SEARCH-REPORT | CN202153697U |
| INTERNATIONAL-SEARCH-REPORT | CN202917993U |
| INTERNATIONAL-SEARCH-REPORT | WO2016011454 |
| OPPOSITION | EP2141795 |
| OPPOSITION | EP2196667 |
| OPPOSITION | EP2492504 |
| OPPOSITION | US2011106325 |
| OPPOSITION | US2011109095 |
| OPPOSITION | US9062653 |
| OPPOSITION | WO0215367 |
| OPPOSITION | WO2004114493 |
| OPPOSITION | WO2015135546 |
| SEARCH | CN102891501B |
| SEARCH | CN105680567 |
| SEARCH | EP1523088 |
| SEARCH | US2012217746 |
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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Description
OPPO
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Decision to grant a European patent
Search/Exam
Jan 27, 2021
(Electronic) Receipt
Search/Exam
Jan 27, 2021
Filing of the translations of the claims
Search/Exam
Jan 27, 2021
French translation of claims
Search/Exam
Jan 27, 2021
German translation of the claims
Search/Exam
Jan 27, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 18, 2020
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Intention to grant (signatures)
Search/Exam
Sep 18, 2020
Text intended for grant (clean copy)
Search/Exam
Sep 18, 2020
Jul 31, 2020
Examination started
Search/Exam
Apr 1, 2020
(Electronic) Receipt
Search/Exam
Apr 1, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 1, 2020
Priority search results
Search/Exam
Apr 1, 2020
Priority search results
Search/Exam
Apr 1, 2020
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Amended claims with annotations
Search/Exam
Feb 17, 2020
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Amended description with annotations
Search/Exam
Feb 17, 2020
Amendments received before examination
Search/Exam
Sep 5, 2019
Aug 19, 2019
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European search opinion
Search/Exam
Aug 19, 2019
Information on Search Strategy
Search/Exam
Aug 19, 2019
Supplementary European search report
Search/Exam
Aug 7, 2019
Search started
Search/Exam
May 10, 2019
May 10, 2019
Aug 29, 2018
Notification of forthcoming publication
Search/Exam
Aug 28, 2018
Jul 9, 2018
Jul 2, 2018
Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Jul 2, 2018
Communication to designated inventor
Search/Exam
Jul 2, 2018
Communication to designated inventor
Search/Exam
Jun 18, 2018
(Electronic) Receipt
Search/Exam
Jun 18, 2018
Abstract
Search/Exam
Jun 18, 2018
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Amended claims with annotations
Search/Exam
Jun 18, 2018
Claims
Search/Exam
Jun 18, 2018
Description
Search/Exam
Jun 18, 2018
Drawings
Search/Exam
Jun 18, 2018
Request for entry into the European phase
Search/Exam
May 9, 2018
Apr 19, 2018
Copy of the international search report
Search/Exam
Apr 19, 2018
Apr 19, 2018
International publication pamphlet
Search/Exam