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The patent EP2588751 was granted to Vestas Wind Systems on Aug 7, 2019. The application was filed on Jun 24, 2011 under application number EP11729049A. 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 |
|---|---|---|---|
| SUZLON ENERGY | May 7, 2020 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE3722022 |
| DESCRIPTION | EP1571334 |
| DESCRIPTION | EP2037119 |
| DESCRIPTION | US2003160456 |
| DESCRIPTION | WO2008053017 |
| DESCRIPTION | WO2008074324 |
| DESCRIPTION | WO2009068036 |
| INTERNATIONAL-SEARCH-REPORT | EP2037119 |
| INTERNATIONAL-SEARCH-REPORT | EP2189656 |
| INTERNATIONAL-SEARCH-REPORT | US2003160456 |
| INTERNATIONAL-SEARCH-REPORT | US5278773 |
| OPPOSITION | EP2037119 |
| OPPOSITION | EP2189656 |
| OPPOSITION | US2003160456 |
| OPPOSITION | US2010138060 |
| OPPOSITION | US5278773 |
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.
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Description
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Aug 19, 2019
Jul 11, 2019
Decision to grant a European patent
Search/Exam
May 29, 2019
(Electronic) Receipt
Search/Exam
May 29, 2019
Filing of the translations of the claims
Search/Exam
May 29, 2019
French translation of claims
Search/Exam
May 29, 2019
German translation of the claims
Search/Exam
May 29, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2019
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Intention to grant (signatures)
Search/Exam
Feb 1, 2019
Text intended for grant (clean copy)
Search/Exam
Feb 1, 2019
Nov 13, 2018
(Electronic) Receipt
Search/Exam
Nov 13, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 13, 2018
Sep 18, 2018
Sep 12, 2018
(Electronic) Receipt
Search/Exam
Sep 12, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 12, 2018
May 4, 2018
Annex to the communication
Search/Exam
May 4, 2018
Communication from the Examining Division
Search/Exam
Sep 13, 2017
(Electronic) Receipt
Search/Exam
Sep 13, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 13, 2017
Jul 12, 2017
Jul 7, 2017
(Electronic) Receipt
Search/Exam
Jul 7, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 7, 2017
Mar 9, 2017
Annex to the communication
Search/Exam
Mar 9, 2017
Communication from the Examining Division
Search/Exam
Mar 2, 2017
Examination started
Search/Exam
Apr 30, 2015
Apr 24, 2015
Mar 16, 2015
Mar 9, 2015
Sep 6, 2013
(Electronic) Receipt
Search/Exam
Sep 6, 2013
Sep 6, 2013
Amended claims with annotations
Search/Exam
Sep 6, 2013
Sep 6, 2013
Amendments received before examination
Search/Exam
Sep 6, 2013
Letter accompanying subsequently filed items
Search/Exam
Apr 10, 2013
Mar 7, 2013
Mar 5, 2013
Communication to designated inventor
Search/Exam
Mar 5, 2013
Communication to designated inventor
Search/Exam
Jan 25, 2013
(Electronic) Receipt
Search/Exam
Jan 25, 2013
Request for entry into the European phase
Search/Exam
Jan 22, 2013
Nov 9, 2012
Information on entry into European phase
Search/Exam
Jan 25, 2012
Jan 25, 2012
Jan 24, 2012
Notification of the recording of a change
Search/Exam
Jan 5, 2012
Copy of the international search report
Search/Exam
Oct 19, 2011
Oct 10, 2011
Oct 10, 2011
Oct 10, 2011
Jun 24, 2011
Abstract
PCTISA
Jun 24, 2011
Claims
PCTISA
Jun 24, 2011
Description
PCTISA
Jun 24, 2011
Drawings
PCTISA