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The patent EP2138716 was granted to Gamesa Innovation & Technology on Feb 14, 2024. The application was filed on Jun 25, 2009 under application number EP09008602A. 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 |
|---|---|---|---|
| VESTAS WIND SYSTEMS | Feb 6, 2020 | WORTHINGTON | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1878915 |
| OPPOSITION | EP1779997 |
| OPPOSITION | EP1878915 |
| OPPOSITION | US2005106029 |
| OPPOSITION | US2007065288 |
| OPPOSITION | US2009114337 |
| OPPOSITION | US4420354 |
| OPPOSITION | WO2006002621 |
| OPPOSITION | WO2006056584 |
| OPPOSITION | WO2006070171 |
| OPPOSITION | WO2007010064 |
| SEARCH | EP1779997 |
| SEARCH | US4420354 |
| SEARCH | WO2006002621 |
| SEARCH | WO2006056584 |
| SEARCH | WO2006070171 |
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 9, 2025
May 9, 2025
Jan 18, 2024
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Jan 15, 2024
Refund of fees
OPPO
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Mar 23, 2023
Authorisation
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Claims
Appeal
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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Appeal
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Appeal
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Claims
Appeal
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Appeal
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Notice of appeal
Appeal
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Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
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(Electronic) Receipt
Search/Exam
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French translation of claims
Search/Exam
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German translation of the claims
Search/Exam
Mar 27, 2019
Letter accompanying subsequently filed items
Search/Exam
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Search/Exam
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Intention to grant (signatures)
Search/Exam
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Text intended for grant (clean copy)
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Amended claims with annotations
Search/Exam
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Claims
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Jul 16, 2018
Annex to the communication
Search/Exam
Jul 16, 2018
Communication from the Examining Division
Search/Exam
Apr 27, 2018
Amended claims with annotations
Search/Exam
Apr 27, 2018
Claims
Search/Exam
Apr 27, 2018
Dec 20, 2017
Annex to the communication
Search/Exam
Dec 20, 2017
Communication from the Examining Division
Search/Exam
Dec 13, 2017
Examination started
Search/Exam
Jul 1, 2011
Letter concerning fees and payments
Search/Exam
Oct 4, 2010
Amended claims with annotations
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Oct 4, 2010
Claims
Search/Exam
Oct 4, 2010
Jul 30, 2010
Refund order of filing/examination fee
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Jul 28, 2010
Communication from the Examining Division
Search/Exam
Jul 6, 2010
Letter accompanying subsequently filed items
Search/Exam
Jul 6, 2010
Letter concerning fees and payments
Search/Exam
Jul 6, 2010
Letter concerning fees and payments
Search/Exam
Jul 6, 2010
Payment of fees and costs
Search/Exam
Jan 7, 2010
Dec 2, 2009
Notification of forthcoming publication
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Oct 30, 2009
Oct 30, 2009
European search opinion
Search/Exam
Oct 30, 2009
European search report
Search/Exam
Jul 27, 2009
Note on telephone consultation
Search/Exam
Jul 24, 2009
Letter concerning fees and payments
Search/Exam
Jul 24, 2009
Request for grant of a European patent
Search/Exam
Jul 15, 2009
Jun 25, 2009
Abstract
Search/Exam
Jun 25, 2009
Annex
Search/Exam
Jun 25, 2009
Annex
Search/Exam
Jun 25, 2009
Claims
Search/Exam
Jun 25, 2009
Description
Search/Exam
Jun 25, 2009
Designation of inventor
Search/Exam
Jun 25, 2009
Drawings
Search/Exam
Jun 25, 2009
Matter concerning the application
Search/Exam
Jun 25, 2009
Priority document
Search/Exam
Jun 25, 2009
Priority document
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Jun 25, 2009
Request for grant of a European patent
Search/Exam