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The patent EP2979361 was granted to KK Wind Solutions on May 8, 2019. The application was filed on Mar 26, 2014 under application number EP14713374A. 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 |
|---|---|---|---|
| CONVERTERTEC DEUTSCHLAND | Feb 10, 2020 | COHAUSZ & FLORACK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US2005253165 |
| EXAMINATION | US2007070567 |
| EXAMINATION | US2013049843 |
| INTERNATIONAL-SEARCH-REPORT | JPH11261064 |
| INTERNATIONAL-SEARCH-REPORT | US2012200320 |
| INTERNATIONAL-SEARCH-REPORT | US6275093 |
| OPPOSITION | EP2568268 |
| OPPOSITION | WO2014154221 |
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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May 20, 2019
Apr 11, 2019
Decision to grant a European patent
Search/Exam
Mar 19, 2019
(Electronic) Receipt
Search/Exam
Mar 19, 2019
French translation of claims
Search/Exam
Mar 19, 2019
German translation of the claims
Search/Exam
Mar 19, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 21, 2018
Nov 21, 2018
Nov 21, 2018
Intention to grant (signatures)
Search/Exam
Nov 21, 2018
Text intended for grant (clean copy)
Search/Exam
Nov 21, 2018
Aug 23, 2018
(Electronic) Receipt
Search/Exam
Aug 23, 2018
Abstract
Search/Exam
Aug 23, 2018
Amended claims with annotations
Search/Exam
Aug 23, 2018
Amended description with annotations
Search/Exam
Aug 23, 2018
Amended description with annotations
Search/Exam
Aug 23, 2018
Claims
Search/Exam
Aug 23, 2018
Description
Search/Exam
Aug 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 23, 2018
Jul 30, 2018
Annex to the communication
Search/Exam
Jul 30, 2018
Jul 30, 2018
Apr 30, 2018
(Electronic) Receipt
Search/Exam
Apr 30, 2018
Amended claims with annotations
Search/Exam
Apr 30, 2018
Amended description with annotations
Search/Exam
Apr 30, 2018
Claims
Search/Exam
Apr 30, 2018
Description
Search/Exam
Apr 30, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 30, 2018
Mar 1, 2018
Annex to the communication
Search/Exam
Mar 1, 2018
Mar 1, 2018
Dec 19, 2017
(Electronic) Receipt
Search/Exam
Dec 19, 2017
Amended claims with annotations
Search/Exam
Dec 19, 2017
Claims
Search/Exam
Dec 19, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 19, 2017
Sep 26, 2017
Annex to the communication
Search/Exam
Sep 26, 2017
Communication from the Examining Division
Search/Exam
Sep 19, 2017
Examination started
Search/Exam
May 5, 2017
(Electronic) Receipt
Search/Exam
May 5, 2017
Matter concerning the application
Search/Exam
Jan 10, 2017
Submission concerning representation
Search/Exam
Apr 15, 2016
(Electronic) Receipt
Search/Exam
Apr 15, 2016
Apr 15, 2016
Amended claims with annotations
Search/Exam
Apr 15, 2016
Apr 15, 2016
Amended description with annotations
Search/Exam
Apr 15, 2016
Amendments received before examination
Search/Exam
Apr 15, 2016
Letter accompanying subsequently filed items
Search/Exam
Jan 7, 2016
Nov 3, 2015
Oct 30, 2015
Communication to designated inventor
Search/Exam
Oct 13, 2015
Oct 7, 2015
(Electronic) Receipt
Search/Exam
Oct 7, 2015
Request for entry into the European phase
Search/Exam
Aug 7, 2015
Information on entry into European phase
Search/Exam
Apr 2, 2015
Copy of the international search report
Search/Exam
Apr 2, 2015
Feb 5, 2015
Feb 5, 2015
Feb 5, 2015
Oct 22, 2014
Oct 7, 2014
Oct 7, 2014
Notification of the recording of a change
Search/Exam
Oct 2, 2014
Oct 2, 2014
Published international application - A2
Search/Exam
May 13, 2014
Mar 26, 2014
Abstract
PCTISA
Mar 26, 2014
Claims
PCTISA
Mar 26, 2014
Description
PCTISA
Mar 26, 2014
Drawings
PCTISA