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The patent EP2947313 was granted to Acciona Windpower on Jul 2, 2025. The application was filed on May 19, 2015 under application number EP15168268A. 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 |
|---|---|---|---|
| SUZLON ENERGY | Aug 13, 2021 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2013045098 |
| OPPOSITION | DE29715249U |
| OPPOSITION | EP2690285 |
| OPPOSITION | EP2706231 |
| OPPOSITION | EP2784304 |
| OPPOSITION | US2013045098 |
| SEARCH | DE29715249U |
| SEARCH | EP2690285 |
| SEARCH | US2013045098 |
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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Jun 5, 2025
Jun 5, 2025
May 23, 2025
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May 14, 2025
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May 6, 2025
Apr 23, 2025
Refund of fees
Appeal
Apr 16, 2025
Apr 16, 2025
Apr 16, 2025
Apr 16, 2025
Apr 11, 2025
(Electronic) Receipt
Appeal
Apr 11, 2025
Apr 11, 2025
Apr 11, 2025
Withdrawal of an appeal
Appeal
Mar 19, 2025
Mar 19, 2025
Feb 11, 2025
Feb 6, 2025
(Electronic) Receipt
Appeal
Feb 6, 2025
Feb 6, 2025
Dec 23, 2024
Dec 18, 2024
(Electronic) Receipt
Appeal
Dec 18, 2024
Dec 12, 2024
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May 17, 2024
(Electronic) Receipt
Appeal
May 17, 2024
May 17, 2024
Jan 29, 2024
Jan 24, 2024
(Electronic) Receipt
Appeal
Jan 24, 2024
Jan 24, 2024
Reply to appeal
Appeal
Sep 28, 2023
Sep 21, 2023
(Electronic) Receipt
Appeal
Sep 21, 2023
Sep 21, 2023
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Aug 3, 2023
Aug 3, 2023
Jul 31, 2023
(Electronic) Receipt
Appeal
Jul 31, 2023
Jul 31, 2023
Notice of appeal
Appeal
May 25, 2023
May 22, 2023
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Means of redress
OPPO
May 22, 2023
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Dec 7, 2020
Oct 29, 2020
Decision to grant a European patent
Search/Exam
Oct 27, 2020
Intention to grant (signatures)
Search/Exam
Oct 19, 2020
Oct 19, 2020
Oct 19, 2020
Text intended for grant (clean copy)
Search/Exam
Oct 19, 2020
Sep 30, 2020
(Electronic) Receipt
Search/Exam
Sep 30, 2020
Amended claims with annotations
Search/Exam
Sep 30, 2020
Claims
Search/Exam
Sep 30, 2020
French translation of claims
Search/Exam
Sep 30, 2020
German translation of the claims
Search/Exam
Sep 30, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 30, 2020
Sep 14, 2020
Sep 8, 2020
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May 20, 2020
Intention to grant (signatures)
Search/Exam
May 20, 2020
Text intended for grant (clean copy)
Search/Exam
May 20, 2020
Sep 5, 2018
(Electronic) Receipt
Search/Exam
Sep 5, 2018
Amended claims with annotations
Search/Exam
Sep 5, 2018
Amended claims with annotations
Search/Exam
Sep 5, 2018
Amended description with annotations
Search/Exam
Sep 5, 2018
Amended description with annotations
Search/Exam
Sep 5, 2018
Claims
Search/Exam
Sep 5, 2018
Claims
Search/Exam
Sep 5, 2018
Description
Search/Exam
Sep 5, 2018
Description
Search/Exam
Sep 5, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 5, 2018
May 2, 2018
Annex to the communication
Search/Exam
May 2, 2018
Communication from the Examining Division
Search/Exam
Apr 18, 2018
Examination started
Search/Exam
Jan 25, 2018
Jun 7, 2016
Jun 1, 2016
May 17, 2016
(Electronic) Receipt
Search/Exam
May 17, 2016
May 17, 2016
Amended description with annotations
Search/Exam
May 17, 2016
Amendments received before examination
Search/Exam
May 17, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 30, 2015
Oct 28, 2015
Notification of forthcoming publication
Search/Exam
Sep 28, 2015
Sep 28, 2015
European search opinion
Search/Exam
Sep 28, 2015
European search report
Search/Exam
Jul 15, 2015
(Electronic) Receipt
Search/Exam
Jul 15, 2015
Abstract
Search/Exam
Jul 15, 2015
Claims
Search/Exam
Jul 15, 2015
Description
Search/Exam
Jul 15, 2015
Drawings
Search/Exam
Jul 15, 2015
Letter accompanying subsequently filed items
Search/Exam
Jul 10, 2015
Communication to designated inventor
Search/Exam
Jul 10, 2015
Communication to designated inventor
Search/Exam
Jul 10, 2015
Communication to designated inventor
Search/Exam
Jul 10, 2015
Communication to designated inventor
Search/Exam
Jul 10, 2015
Communication to designated inventor
Search/Exam
Jul 10, 2015
Communication to designated inventor
Search/Exam
Jul 10, 2015
Communication to designated inventor
Search/Exam
Jul 10, 2015
Communication to designated inventor
Search/Exam
May 28, 2015
Letter concerning the priority
Search/Exam
May 28, 2015
Priority document
Search/Exam
May 19, 2015
May 19, 2015
Designation of inventor
Search/Exam
May 19, 2015
Drawings
Search/Exam
May 19, 2015
Request for grant of a European patent
Search/Exam
May 19, 2015