The weekly litigation news digest is live. Subscribe now
The patent EP3009531 was granted to Commissariat A Lenergie Atomique ET AUX Energies Alternatives on Oct 15, 2025. The application was filed on Oct 12, 2015 under application number EP15189434A. 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 |
|---|---|---|---|
| NORDEX ENERGY SPAIN | Apr 13, 2023 | ELION | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2010048706 |
| OPPOSITION | CA2370026 |
| OPPOSITION | FR2927907 |
| OPPOSITION | FR2960559 |
| OPPOSITION | US2008047502 |
| OPPOSITION | US2010259102 |
| OPPOSITION | US6912450 |
| OPPOSITION | WO2010048706 |
| SEARCH | FR2960559 |
| SEARCH | FR2960560 |
| SEARCH | US2012175954 |
| SEARCH | US2013093194 |
| SEARCH | US2013168236 |
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
Get instant alerts for new documents
Sep 18, 2025
Sep 18, 2025
Sep 5, 2025
Sep 5, 2025
Sep 5, 2025
Sep 5, 2025
Jun 10, 2025
Jun 10, 2025
Jun 2, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Means of redress
OPPO
Feb 28, 2025
Feb 5, 2025
Feb 5, 2025
Feb 5, 2025
Jan 31, 2025
Jan 31, 2025
Jan 31, 2025
Dec 19, 2024
Dec 16, 2024
Dec 16, 2024
Dec 16, 2024
Dec 11, 2024
Dec 9, 2024
Dec 4, 2024
Dec 4, 2024
Dec 4, 2024
Description
OPPO
Dec 4, 2024
Dec 4, 2024
Nov 8, 2024
Nov 8, 2024
Nov 8, 2024
Nov 8, 2024
Nov 8, 2024
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Nov 6, 2024
Oct 15, 2024
Sep 26, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Sep 19, 2024
Aug 20, 2024
Aug 14, 2024
Aug 13, 2024
Aug 13, 2024
Aug 8, 2024
Aug 8, 2024
Aug 8, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Mar 12, 2024
Nov 17, 2023
Nov 13, 2023
Nov 13, 2023
Nov 13, 2023
Sep 7, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Sep 1, 2023
Apr 25, 2023
Apr 25, 2023
Apr 18, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Jul 26, 2022
Jun 17, 2022
Decision to grant a European patent
Search/Exam
Jun 1, 2022
(Electronic) Receipt
Search/Exam
Jun 1, 2022
English translation of the claims
Search/Exam
Jun 1, 2022
Filing of the translations of the claims
Search/Exam
Jun 1, 2022
German translation of the claims
Search/Exam
Jan 27, 2022
Jan 27, 2022
Jan 27, 2022
Intention to grant (signatures)
Search/Exam
Jan 27, 2022
Text intended for grant (clean copy)
Search/Exam
Jan 27, 2022
Jun 18, 2020
(Electronic) Receipt
Search/Exam
Jun 18, 2020
Amended claims with annotations
Search/Exam
Jun 18, 2020
Claims
Search/Exam
Jun 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 18, 2020
Apr 16, 2020
Apr 9, 2020
(Electronic) Receipt
Search/Exam
Apr 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 9, 2020
Dec 11, 2019
Annex to the communication
Search/Exam
Dec 11, 2019
Communication from the Examining Division
Search/Exam
Dec 6, 2019
Document concerning representation
Search/Exam
Aug 9, 2018
(Electronic) Receipt
Search/Exam
Aug 9, 2018
Amended claims with annotations
Search/Exam
Aug 9, 2018
Claims
Search/Exam
Aug 9, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 9, 2018
Jun 5, 2018
May 30, 2018
(Electronic) Receipt
Search/Exam
May 30, 2018
Letter accompanying subsequently filed items
Search/Exam
May 30, 2018
Feb 2, 2018
Annex to the communication
Search/Exam
Feb 2, 2018
Communication from the Examining Division
Search/Exam
Jan 26, 2018
Examination started
Search/Exam
Jan 23, 2017
Jan 23, 2017
Submission concerning representation
Search/Exam
Jan 18, 2017
Submission concerning representation
Search/Exam
Oct 18, 2016
(Electronic) Receipt
Search/Exam
Oct 18, 2016
Letter accompanying subsequently filed items
Search/Exam
Oct 18, 2016
Reply to Written Opinion prepared by the EPO
Search/Exam
Apr 25, 2016
Mar 23, 2016
Notification of forthcoming publication
Search/Exam
Mar 16, 2016
Refund of fees
Search/Exam
Mar 8, 2016
Mar 8, 2016
European search opinion
Search/Exam
Mar 8, 2016
European search report
Search/Exam
Mar 8, 2016
Information on Search Strategy
Search/Exam
Feb 26, 2016
Search started
Search/Exam
Dec 4, 2015
Communication to designated inventor
Search/Exam
Dec 4, 2015
Communication to designated inventor
Search/Exam
Nov 14, 2015
Letter concerning the priority
Search/Exam
Nov 14, 2015
Priority document
Search/Exam
Oct 29, 2015
Priority search results copy provided by EPO
Search/Exam
Oct 12, 2015
Abstract
Search/Exam
Oct 12, 2015
Oct 12, 2015
Claims
Search/Exam
Oct 12, 2015
Description
Search/Exam
Oct 12, 2015
Designation of inventor
Search/Exam
Oct 12, 2015
Drawings
Search/Exam
Oct 12, 2015
Letter concerning search matters
Search/Exam
Oct 12, 2015
Oct 12, 2015
Request for grant of a European patent
Search/Exam