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The patent EP3617496 was granted to Wobben Properties on Oct 23, 2024. The application was filed on Apr 2, 2007 under application number EP19188863A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| GE WIND ENERGY | Jul 23, 2025 | ZIMMERMANN & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
| NORDEX ENERGY | Jul 23, 2025 | HAUCK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0845580 |
| DESCRIPTION | NL1012949C |
| DESCRIPTION | US2006131889 |
| DESCRIPTION | US2006232073 |
| DESCRIPTION | US3578264 |
| DESCRIPTION | US4674717 |
| DESCRIPTION | US5734990 |
| DESCRIPTION | US6072245 |
| DESCRIPTION | WO0015961 |
| DESCRIPTION | WO03067169 |
| DESCRIPTION | WO2004078465 |
| EXAMINATION | EP1152148 |
| OPPOSITION | EP0663527 |
| OPPOSITION | EP1152148 |
| OPPOSITION | EP1314885 |
| OPPOSITION | US5417548 |
| OPPOSITION | WO0015961 |
| OPPOSITION | WO0116482 |
| OPPOSITION | WO2006090215 |
| OPPOSITION | WO2007114698 |
| OPPOSITION | WO9201865 |
| SEARCH | US3578264 |
| SEARCH | WO0015961 |
| SEARCH | WO2005035978 |
| SEARCH | WO9011929 |
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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Nov 6, 2024
Sep 26, 2024
Decision to grant a European patent
Search/Exam
Sep 13, 2024
Sep 12, 2024
(Electronic) Receipt
Search/Exam
Sep 12, 2024
Sep 12, 2024
Filing of the translations of the claims
Search/Exam
Sep 12, 2024
French translation of claims
Search/Exam
Sep 12, 2024
German translation of the claims
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Sep 12, 2024
Letter accompanying subsequently filed items
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May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
Intention to grant (signatures)
Search/Exam
May 15, 2024
Text intended for grant (clean copy)
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May 15, 2024
Dec 18, 2023
(Electronic) Receipt
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Dec 18, 2023
Amended claims with annotations
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Dec 18, 2023
Amended description with annotations
Search/Exam
Dec 18, 2023
Claims
Search/Exam
Dec 18, 2023
Description
Search/Exam
Dec 18, 2023
Letter accompanying subsequently filed items
Search/Exam
Dec 18, 2023
Oct 18, 2023
Oct 13, 2023
(Electronic) Receipt
Search/Exam
Oct 13, 2023
Letter accompanying subsequently filed items
Search/Exam
Oct 13, 2023
Jun 6, 2023
Annex to the communication
Search/Exam
Jun 6, 2023
Communication from the Examining Division
Search/Exam
Nov 14, 2022
(Electronic) Receipt
Search/Exam
Nov 14, 2022
Amended claims with annotations
Search/Exam
Nov 14, 2022
Claims
Search/Exam
Nov 14, 2022
Letter accompanying subsequently filed items
Search/Exam
Nov 14, 2022
Sep 19, 2022
Sep 14, 2022
(Electronic) Receipt
Search/Exam
Sep 14, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2022
May 4, 2022
Annex to the communication
Search/Exam
May 4, 2022
Communication from the Examining Division
Search/Exam
May 17, 2021
(Electronic) Receipt
Search/Exam
May 17, 2021
Amended claims with annotations
Search/Exam
May 17, 2021
Claims
Search/Exam
May 17, 2021
Letter accompanying subsequently filed items
Search/Exam
May 17, 2021
Jan 20, 2021
Annex to the communication
Search/Exam
Jan 20, 2021
Communication from the Examining Division
Search/Exam
Jan 14, 2021
Examination started
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Nov 19, 2020
(Electronic) Receipt
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Nov 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 19, 2020
Sep 17, 2020
Sep 4, 2020
(Electronic) Receipt
Search/Exam
Sep 4, 2020
Sep 4, 2020
Amended claims with annotations
Search/Exam
Sep 4, 2020
Sep 4, 2020
Amended description with annotations
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Sep 4, 2020
Amendments received before examination
Search/Exam
Sep 4, 2020
Letter accompanying subsequently filed items
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Mar 9, 2020
Feb 26, 2020
Refund of fees
Search/Exam
Feb 5, 2020
Notification of forthcoming publication
Search/Exam
Jan 30, 2020
Jan 30, 2020
European search opinion
Search/Exam
Jan 30, 2020
European search report
Search/Exam
Jan 30, 2020
Information on Search Strategy
Search/Exam
Oct 22, 2019
Communication to designated inventor
Search/Exam
Oct 1, 2019
Search started
Search/Exam
Jul 29, 2019
Abstract
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Jul 29, 2019
Jul 29, 2019
Claims
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Jul 29, 2019
Description
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Jul 29, 2019
Designation of inventor
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Jul 29, 2019
Drawings
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Jul 29, 2019
Request for grant of a European patent
Search/Exam
Oct 30, 2007
Oct 30, 2007