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The patent EP2731773 was granted to Carbon Rotec on Apr 19, 2017. The application was filed on Jun 6, 2012 under application number EP12725802A. 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 |
|---|---|---|---|
| VESTAS WIND SYSTEMS | Jan 16, 2018 | GRUNECKER PATENT | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE102004042422 |
| INTERNATIONAL-SEARCH-REPORT | DE102008029058 |
| INTERNATIONAL-SEARCH-REPORT | DE2731535 |
| INTERNATIONAL-SEARCH-REPORT | DE3103890 |
| INTERNATIONAL-SEARCH-REPORT | DE3808363 |
| INTERNATIONAL-SEARCH-REPORT | DK201070038 |
| INTERNATIONAL-SEARCH-REPORT | GB2346107 |
| INTERNATIONAL-SEARCH-REPORT | US5358211 |
| INTERNATIONAL-SEARCH-REPORT | US6283745 |
| OPPOSITION | CN102114681 |
| OPPOSITION | CN200995458Y |
| OPPOSITION | CN201042833Y |
| OPPOSITION | DE102004042422 |
| OPPOSITION | DE102008029058 |
| OPPOSITION | DE2050733 |
| OPPOSITION | DE2731535 |
| OPPOSITION | DE3103890 |
| OPPOSITION | DE3808363 |
| OPPOSITION | DK201070038 |
| OPPOSITION | GB2346107 |
| OPPOSITION | US2010140448 |
| OPPOSITION | US3387333 |
| OPPOSITION | US4882118 |
| OPPOSITION | US5358211 |
| OPPOSITION | US6283745 |
| OPPOSITION | WO2011029274 |
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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Mar 9, 2020
Mar 9, 2020
Mar 4, 2020
Nov 26, 2019
Nov 26, 2019
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Nov 22, 2019
Means of redress
OPPO
Nov 22, 2019
Nov 26, 2018
Nov 26, 2018
Nov 16, 2018
Nov 6, 2018
Oct 26, 2018
Mar 21, 2018
Mar 21, 2018
Mar 21, 2018
Mar 6, 2018
Annex
OPPO
Mar 6, 2018
Annex
OPPO
Mar 6, 2018
Feb 15, 2018
Feb 7, 2018
Jan 31, 2018
Jan 31, 2018
Jan 25, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Jan 16, 2018
Apr 20, 2017
Mar 23, 2017
Decision to grant a European patent
Search/Exam
Mar 9, 2017
English translation of the claims
Search/Exam
Mar 9, 2017
Filing of the translations of the claims
Search/Exam
Mar 9, 2017
French translation of claims
Search/Exam
Mar 8, 2017
English translation of the claims
Search/Exam
Mar 8, 2017
Filing of the translations of the claims
Search/Exam
Mar 8, 2017
French translation of claims
Search/Exam
Dec 19, 2016
Payment of fees and costs
Search/Exam
Dec 9, 2016
Submission concerning representation
Search/Exam
Nov 7, 2016
Nov 7, 2016
Nov 7, 2016
Intention to grant (signatures)
Search/Exam
Nov 7, 2016
Text intended for grant (clean copy)
Search/Exam
Nov 7, 2016
Jun 22, 2016
Payment of fees and costs
Search/Exam
Jun 22, 2016
Payment of fees and costs
Search/Exam
Apr 28, 2016
Apr 27, 2016
Amended description with annotations
Search/Exam
Apr 27, 2016
Claims
Search/Exam
Apr 27, 2016
Description
Search/Exam
Apr 27, 2016
Apr 21, 2016
Dec 22, 2015
Annex to the communication
Search/Exam
Dec 22, 2015
Communication from the Examining Division
Search/Exam
Dec 16, 2015
Examination started
Search/Exam
Jun 25, 2015
Payment of fees and costs
Search/Exam
Jun 25, 2015
Payment of fees and costs
Search/Exam
Oct 29, 2014
Priority search results
Search/Exam
Oct 29, 2014
Oct 27, 2014
Oct 22, 2014
Matter concerning the application
Search/Exam
Oct 13, 2014
Sep 17, 2014
Sep 17, 2014
Sep 3, 2014
Aug 4, 2014
Amendments received before examination
Search/Exam
Aug 1, 2014
Amendments received before examination
Search/Exam
Jul 15, 2014
Jul 15, 2014
Payment of fees and costs
Search/Exam
Jul 15, 2014
Payment of fees and costs
Search/Exam
Jul 15, 2014
Payment of fees and costs
Search/Exam
Jul 15, 2014
Jul 15, 2014
Jun 30, 2014
Jun 30, 2014
Letter concerning fees and payments
Search/Exam
Jun 30, 2014
Payment of fees and costs
Search/Exam
Jun 25, 2014
Annexes in respect of a client data request
Search/Exam
Jun 25, 2014
Payment of fees and costs
Search/Exam
May 16, 2014
Authorisation
Search/Exam
May 16, 2014
Authorisation
Search/Exam
May 16, 2014
May 16, 2014
Submission concerning representation
Search/Exam
May 16, 2014
Submission concerning representation
Search/Exam
Apr 24, 2014
Mar 18, 2014
Mar 12, 2014
Feb 21, 2014
Feb 19, 2014
Communication to designated inventor
Search/Exam
Feb 19, 2014
Communication to designated inventor
Search/Exam
Jan 28, 2014
Nov 29, 2013
(Electronic) Receipt
Search/Exam
Nov 29, 2013
Request for entry into the European phase
Search/Exam
Nov 22, 2013
Information on entry into European phase
Search/Exam
Feb 6, 2013
Jan 17, 2013
Copy of the international search report
Search/Exam
Jan 17, 2013
Copy of the international search report
Search/Exam
Jan 17, 2013
Published international application - A1
Search/Exam
Nov 27, 2012
Nov 5, 2012
Nov 5, 2012
Nov 5, 2012
Jun 6, 2012
(Electronic) Receipt
PCTRO
Jun 6, 2012
Abstract
PCTRO
Jun 6, 2012
Claims
PCTRO
Jun 6, 2012
Description
PCTRO
Jun 6, 2012
Drawings
PCTRO