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The patent EP3749853 was granted to Siemens Gamesa Renewable Energy on Feb 15, 2023. The application was filed on Mar 1, 2019 under application number EP19710331A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| WOBBEN PROPERTIES | Nov 15, 2023 | EISENFUHR SPEISER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1534951 |
| INTERNATIONAL-SEARCH-REPORT | EP2788620 |
| INTERNATIONAL-SEARCH-REPORT | EP3121442 |
| INTERNATIONAL-SEARCH-REPORT | EP3263889 |
| INTERNATIONAL-SEARCH-REPORT | US2011193344 |
| OPPOSITION | DE102016103254 |
| OPPOSITION | EP3047143 |
| OPPOSITION | EP3121442 |
| OPPOSITION | EP3263889 |
| OPPOSITION | US2011193344 |
| OPPOSITION | US2014037447 |
| OPPOSITION | US7118339 |
| OPPOSITION | US8025476 |
| OPPOSITION | WO2004011799 |
| OPPOSITION | WO2011076875 |
| OPPOSITION | WO2013083131 |
| OPPOSITION | WO2016102154 |
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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Means of redress
OPPO
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Authorisation
OPPO
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Feb 28, 2023
Jan 19, 2023
Decision to grant a European patent
Search/Exam
Jan 4, 2023
(Electronic) Receipt
Search/Exam
Jan 4, 2023
Filing of the translations of the claims
Search/Exam
Jan 4, 2023
French translation of claims
Search/Exam
Jan 4, 2023
German translation of the claims
Search/Exam
Sep 19, 2022
Sep 19, 2022
Sep 19, 2022
Intention to grant (signatures)
Search/Exam
Sep 19, 2022
Text intended for grant (clean copy)
Search/Exam
Sep 19, 2022
Sep 7, 2022
Aug 31, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 31, 2022
Aug 29, 2022
Examination started
Search/Exam
May 19, 2021
May 6, 2021
Nov 18, 2020
Oct 8, 2020
(Electronic) Receipt
Search/Exam
Oct 8, 2020
Oct 8, 2020
Amended claims with annotations
Search/Exam
Oct 8, 2020
Amendments received before examination
Search/Exam
Oct 8, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 21, 2020
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Sep 16, 2020
Communication to designated inventor
Search/Exam
Sep 12, 2020
Priority search results copy provided by EPO
Search/Exam
Sep 8, 2020
(Electronic) Receipt
Search/Exam
Sep 8, 2020
Request for entry into the European phase
Search/Exam
Jul 17, 2020
Information on entry into European phase
Search/Exam
Oct 2, 2019
Sep 12, 2019
Copy of the international search report
Search/Exam
Sep 12, 2019
Published international application - A1
Search/Exam
Jun 4, 2019
ISR: cited documents
PCTISA
Jun 4, 2019
Jun 4, 2019
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Mar 26, 2019
Mar 22, 2019
Mar 13, 2019
Mar 1, 2019
(Electronic) Receipt
PCTRO
Mar 1, 2019
Abstract
PCTRO
Mar 1, 2019
Claims
PCTRO
Mar 1, 2019
Description
PCTRO
Mar 1, 2019
Mar 1, 2019
Drawings
PCTRO
Mar 1, 2019
Mar 1, 2019
Mar 1, 2019
Mar 1, 2019