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The patent EP3486476 was granted to Senvion on Aug 5, 2020. The application was filed on Nov 15, 2018 under application number EP18206399A. 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 |
|---|---|---|---|
| VESTAS WIND SYSTEMS | May 5, 2021 | KENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP2881237 |
| OPPOSITION | US2011229333 |
| OPPOSITION | US2017058867 |
| OPPOSITION | US4331723 |
| OPPOSITION | WO2019020152 |
| SEARCH | EP2881237 |
| SEARCH | US2014294591 |
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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Nov 11, 2025
Nov 11, 2025
Nov 11, 2025
Nov 7, 2025
Nov 7, 2025
Nov 6, 2025
Oct 9, 2025
Oct 8, 2025
(Electronic) Receipt
Appeal
Oct 8, 2025
Oct 8, 2025
Oct 6, 2025
Oct 6, 2025
Sep 15, 2025
Sep 12, 2025
(Electronic) Receipt
Appeal
Sep 12, 2025
Sep 12, 2025
Sep 12, 2025
Jul 29, 2025
Jul 24, 2025
(Electronic) Receipt
Appeal
Jul 24, 2025
Jul 24, 2025
Apr 29, 2025
Apr 29, 2025
Apr 1, 2025
Mar 27, 2025
(Electronic) Receipt
Appeal
Mar 27, 2025
Mar 27, 2025
Mar 13, 2025
Mar 10, 2025
(Electronic) Receipt
Appeal
Mar 10, 2025
Mar 10, 2025
Feb 7, 2025
Feb 7, 2025
Feb 7, 2025
Feb 4, 2025
Sep 13, 2024
Sep 10, 2024
(Electronic) Receipt
Appeal
Sep 10, 2024
Sep 10, 2024
Jul 22, 2024
Nov 20, 2023
Nov 15, 2023
(Electronic) Receipt
Appeal
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Nov 15, 2023
Reply to appeal
Appeal
Jul 5, 2023
Jun 30, 2023
(Electronic) Receipt
Appeal
Jun 30, 2023
Jun 30, 2023
Jun 30, 2023
Jun 30, 2023
Jun 2, 2023
Letter which had not been notified
Search/Exam
May 10, 2023
May 10, 2023
Apr 26, 2023
(Electronic) Receipt
Appeal
Apr 26, 2023
Apr 26, 2023
Notice of appeal
Appeal
Mar 10, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Means of redress
OPPO
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Jun 21, 2022
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Apr 4, 2022
Apr 4, 2022
Authorisation
OPPO
Apr 4, 2022
Apr 4, 2022
Mar 24, 2022
Mar 18, 2022
Mar 15, 2022
Mar 15, 2022
Mar 15, 2022
Mar 14, 2022
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Sep 17, 2021
Sep 17, 2021
Sep 17, 2021
Sep 17, 2021
Sep 17, 2021
Jul 5, 2021
Jun 16, 2021
Annexes in respect of a client data request
Search/Exam
Jun 16, 2021
Annexes in respect of a client data request
Search/Exam
Jun 16, 2021
Annexes in respect of a client data request
Search/Exam
Jun 16, 2021
Annexes in respect of a client data request
Search/Exam
Jun 16, 2021
Authorisation
Search/Exam
Jun 16, 2021
General authorisation
Search/Exam
Jun 16, 2021
May 21, 2021
May 12, 2021
May 5, 2021
May 5, 2021
May 5, 2021
May 5, 2021
May 5, 2021
May 5, 2021
May 5, 2021
May 5, 2021
May 5, 2021
May 5, 2021
Aug 17, 2020
Jul 9, 2020
Decision to grant a European patent
Search/Exam
Jun 29, 2020
(Electronic) Receipt
Search/Exam
Jun 29, 2020
English translation of the claims
Search/Exam
Jun 29, 2020
French translation of claims
Search/Exam
Jun 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 25, 2020
Feb 25, 2020
Feb 25, 2020
Intention to grant (signatures)
Search/Exam
Feb 25, 2020
Text intended for grant (clean copy)
Search/Exam
Feb 25, 2020
Jan 28, 2020
Examination started
Search/Exam
Nov 20, 2019
(Electronic) Receipt
Search/Exam
Nov 20, 2019
Nov 20, 2019
Amended claims with annotations
Search/Exam
Nov 20, 2019
Nov 20, 2019
Amended description with annotations
Search/Exam
Nov 20, 2019
Amendments received before examination
Search/Exam
Nov 20, 2019
Letter accompanying subsequently filed items
Search/Exam
May 27, 2019
Apr 25, 2019
Notification of forthcoming publication
Search/Exam
Apr 15, 2019
Apr 15, 2019
European search opinion
Search/Exam
Apr 15, 2019
European search report
Search/Exam
Apr 15, 2019
Information on Search Strategy
Search/Exam
Apr 8, 2019
Search started
Search/Exam
Jan 8, 2019
Communication to designated inventor
Search/Exam
Nov 23, 2018
Letter concerning the priority
Search/Exam
Nov 23, 2018
Priority document
Search/Exam
Nov 15, 2018
Abstract
Search/Exam
Nov 15, 2018
Nov 15, 2018
Claims
Search/Exam
Nov 15, 2018
Description
Search/Exam
Nov 15, 2018
Designation of inventor
Search/Exam
Nov 15, 2018
Drawings
Search/Exam
Nov 15, 2018
Priority search results
Search/Exam
Nov 15, 2018
Request for grant of a European patent
Search/Exam