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The patent EP2731786 was granted to Siemens on Jun 5, 2019. The application was filed on Oct 15, 2012 under application number EP12772939A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| LM WP PATENT HOLDING LM WIND POWER | Mar 5, 2020 | COPA COPENHAGEN PATENTS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2007023975 |
| DESCRIPTION | US2010029155 |
| DESCRIPTION | US7271202 |
| INTERNATIONAL-SEARCH-REPORT | US2007023975 |
| INTERNATIONAL-SEARCH-REPORT | US2010029155 |
| INTERNATIONAL-SEARCH-REPORT | US3340136 |
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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May 14, 2025
Dec 3, 2024
Dec 3, 2024
Dec 3, 2024
Apr 26, 2024
Apr 26, 2024
Apr 26, 2024
Apr 15, 2024
Apr 12, 2024
(Electronic) Receipt
Appeal
Apr 12, 2024
Apr 12, 2024
Apr 4, 2024
Apr 4, 2024
Mar 1, 2024
Feb 26, 2024
(Electronic) Receipt
Appeal
Feb 26, 2024
Authorisation
Appeal
Feb 26, 2024
Jan 10, 2024
Jan 10, 2024
Jan 10, 2024
Jan 9, 2024
(Electronic) Receipt
Appeal
Jan 9, 2024
Jan 9, 2024
Jan 9, 2024
Dec 18, 2023
Dec 18, 2023
Nov 15, 2023
Nov 10, 2023
(Electronic) Receipt
Appeal
Nov 10, 2023
Nov 10, 2023
Nov 2, 2023
Nov 2, 2023
Nov 2, 2023
Oct 24, 2023
(Electronic) Receipt
Appeal
Oct 24, 2023
(Electronic) Receipt
Appeal
Oct 24, 2023
Authorisation
Appeal
Oct 24, 2023
Oct 24, 2023
Oct 24, 2023
Oct 20, 2023
Oct 18, 2023
(Electronic) Receipt
Appeal
Oct 18, 2023
Oct 18, 2023
Apr 19, 2023
Advice of delivery
Appeal
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 9, 2023
Mar 27, 2023
Nov 10, 2022
Nov 7, 2022
(Electronic) Receipt
Appeal
Nov 7, 2022
Nov 7, 2022
Nov 7, 2022
Sep 7, 2022
Sep 7, 2022
Aug 31, 2022
Aug 31, 2022
Aug 12, 2022
Aug 8, 2022
(Electronic) Receipt
Appeal
Aug 8, 2022
Aug 8, 2022
Reply to appeal
Appeal
Apr 7, 2022
Mar 30, 2022
(Electronic) Receipt
Appeal
Mar 30, 2022
Mar 30, 2022
Mar 30, 2022
Mar 30, 2022
Mar 30, 2022
Mar 30, 2022
Mar 30, 2022
Feb 7, 2022
Feb 7, 2022
Jan 28, 2022
Jan 20, 2022
(Electronic) Receipt
Appeal
Jan 20, 2022
Jan 20, 2022
Notice of appeal
Appeal
Nov 25, 2021
Nov 22, 2021
Nov 22, 2021
Nov 22, 2021
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Means of redress
OPPO
Nov 22, 2021
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Jun 30, 2021
Jun 28, 2021
Jun 25, 2021
Jun 25, 2021
Jun 25, 2021
Jun 14, 2021
Jun 1, 2021
Jun 1, 2021
Authorisation
OPPO
Jun 1, 2021
Authorisation
OPPO
Jun 1, 2021
May 4, 2021
May 4, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 23, 2021
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Jan 29, 2021
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Jul 31, 2020
Jul 27, 2020
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Mar 10, 2020
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Mar 5, 2020
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Jun 18, 2019
May 9, 2019
Decision to grant a European patent
Search/Exam
Apr 23, 2019
(Electronic) Receipt
Search/Exam
Apr 23, 2019
French translation of claims
Search/Exam
Apr 23, 2019
German translation of the claims
Search/Exam
Apr 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 10, 2019
Apr 10, 2019
Apr 3, 2019
Annexes in respect of a client data request
Search/Exam
Mar 28, 2019
Jan 4, 2019
Jan 4, 2019
Jan 4, 2019
Intention to grant (signatures)
Search/Exam
Jan 4, 2019
Text intended for grant (clean copy)
Search/Exam
Jan 4, 2019
Sep 7, 2018
(Electronic) Receipt
Search/Exam
Sep 7, 2018
Amended claims with annotations
Search/Exam
Sep 7, 2018
Amended description with annotations
Search/Exam
Sep 7, 2018
Claims
Search/Exam
Sep 7, 2018
Description
Search/Exam
Sep 7, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 7, 2018
May 9, 2018
Annex to the communication
Search/Exam
May 9, 2018
Communication from the Examining Division
Search/Exam
May 3, 2018
Examination started
Search/Exam
Feb 15, 2018
Jul 31, 2017
Jul 24, 2017
Jun 18, 2014
(Electronic) Receipt
Search/Exam
Jun 18, 2014
Jun 18, 2014
Amended claims with annotations
Search/Exam
Jun 18, 2014
Jun 18, 2014
Amended description with annotations
Search/Exam
Jun 18, 2014
Amendments received before examination
Search/Exam
Jun 18, 2014
Letter accompanying subsequently filed items
Search/Exam
Jun 2, 2014
Communication to designated inventor
Search/Exam
May 13, 2014
Apr 24, 2014
Apr 15, 2014
Mar 5, 2014
Feb 26, 2014
Priority search results copy provided by EPO
Search/Exam
Feb 12, 2014
(Electronic) Receipt
Search/Exam
Feb 12, 2014
Request for entry into the European phase
Search/Exam
May 24, 2013
May 2, 2013
Copy of the international search report
Search/Exam
May 2, 2013
Published international application - A1
Search/Exam
Jan 16, 2013
Jan 16, 2013
Jan 16, 2013
Oct 15, 2012
(Electronic) Receipt
PCTRO
Oct 15, 2012
Abstract
PCTRO
Oct 15, 2012
Claims
PCTRO
Oct 15, 2012
Description
PCTRO
Oct 15, 2012
Drawings
PCTRO
Oct 15, 2012