The weekly litigation news digest is live. Subscribe now
The patent EP2828521 was granted to General Electric on Feb 27, 2019. The application was filed on Mar 18, 2013 under application number EP13716530A. 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 | Nov 26, 2019 | BEETZ | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP2378115 |
| INTERNATIONAL-SEARCH-REPORT | US2009257885 |
| INTERNATIONAL-SEARCH-REPORT | US2011142677 |
| INTERNATIONAL-SEARCH-REPORT | US2011150664 |
| OPPOSITION | EP1500814 |
| OPPOSITION | EP2378115 |
| OPPOSITION | US2009068019 |
| OPPOSITION | US2009074583 |
| OPPOSITION | US2009257885 |
| OPPOSITION | US2011142677 |
| OPPOSITION | US2011150664 |
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
Get instant alerts for new documents
Nov 13, 2023
Advice of delivery
Appeal
Nov 9, 2023
Nov 9, 2023
Nov 9, 2023
Oct 5, 2023
Oct 5, 2023
Oct 5, 2023
Sep 11, 2023
Sep 8, 2023
(Electronic) Receipt
Appeal
Sep 8, 2023
Aug 2, 2023
Jul 27, 2023
(Electronic) Receipt
Appeal
Jul 27, 2023
Jul 27, 2023
Jul 25, 2023
Jul 20, 2023
(Electronic) Receipt
Appeal
Jul 20, 2023
(Electronic) Receipt
Appeal
Jul 20, 2023
Jul 20, 2023
Jul 20, 2023
Apr 20, 2023
Apr 20, 2023
Apr 17, 2023
Apr 11, 2023
(Electronic) Receipt
Appeal
Apr 11, 2023
Apr 11, 2023
Jan 2, 2023
Advice of delivery
Appeal
Dec 22, 2022
Dec 22, 2022
Dec 22, 2022
Dec 19, 2022
(Electronic) Receipt
Appeal
Dec 19, 2022
Dec 19, 2022
Dec 14, 2022
Dec 9, 2022
(Electronic) Receipt
Appeal
Dec 9, 2022
Dec 9, 2022
Nov 2, 2022
Oct 27, 2022
(Electronic) Receipt
Appeal
Oct 27, 2022
Oct 27, 2022
Oct 17, 2022
Advice of delivery
Appeal
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 10, 2022
Oct 5, 2022
Sep 22, 2022
Jun 23, 2022
Jun 23, 2022
Jun 20, 2022
(Electronic) Receipt
Appeal
Jun 20, 2022
(Electronic) Receipt
Appeal
Jun 20, 2022
Jun 20, 2022
Jun 20, 2022
Reply to appeal
Appeal
Jun 20, 2022
Reply to appeal
Appeal
Feb 9, 2022
Feb 9, 2022
Feb 4, 2022
(Electronic) Receipt
Appeal
Feb 4, 2022
Feb 4, 2022
Feb 3, 2022
(Electronic) Receipt
Appeal
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Feb 3, 2022
Dec 17, 2021
Dec 17, 2021
Dec 14, 2021
(Electronic) Receipt
Appeal
Dec 14, 2021
Dec 14, 2021
Notice of appeal
Appeal
Dec 8, 2021
Dec 8, 2021
Dec 2, 2021
(Electronic) Receipt
Appeal
Dec 2, 2021
Dec 2, 2021
Notice of appeal
Appeal
Oct 7, 2021
Oct 6, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Means of redress
OPPO
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Oct 4, 2021
Jun 17, 2021
Apr 26, 2021
Apr 26, 2021
Apr 22, 2021
Apr 22, 2021
Apr 22, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Apr 16, 2021
Dec 18, 2020
Dec 15, 2020
Dec 15, 2020
Dec 15, 2020
Annex
OPPO
Dec 10, 2020
Dec 10, 2020
Dec 10, 2020
Dec 10, 2020
Dec 10, 2020
Jun 12, 2020
Jun 3, 2020
Jun 3, 2020
Jun 3, 2020
May 4, 2020
Apr 22, 2020
Apr 22, 2020
Apr 22, 2020
Dec 12, 2019
Dec 12, 2019
Dec 2, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Nov 26, 2019
Jul 4, 2019
Jun 18, 2019
May 16, 2019
Apr 12, 2019
Apr 9, 2019
Mar 28, 2019
Mar 11, 2019
Jan 31, 2019
Decision to grant a European patent
Search/Exam
Jan 9, 2019
(Electronic) Receipt
Search/Exam
Jan 9, 2019
French translation of claims
Search/Exam
Jan 9, 2019
German translation of the claims
Search/Exam
Jan 9, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2018
Oct 19, 2018
Oct 19, 2018
Intention to grant (signatures)
Search/Exam
Oct 19, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 19, 2018
Jun 4, 2018
(Electronic) Receipt
Search/Exam
Jun 4, 2018
Amended claims with annotations
Search/Exam
Jun 4, 2018
Claims
Search/Exam
Jun 4, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 4, 2018
Mar 19, 2018
Mar 13, 2018
(Electronic) Receipt
Search/Exam
Mar 13, 2018
Nov 29, 2017
Annex to the communication
Search/Exam
Nov 29, 2017
Communication from the Examining Division
Search/Exam
Jun 15, 2017
(Electronic) Receipt
Search/Exam
Jun 15, 2017
Amended claims with annotations
Search/Exam
Jun 15, 2017
Amended description with annotations
Search/Exam
Jun 15, 2017
Claims
Search/Exam
Jun 15, 2017
Description
Search/Exam
Jun 15, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 15, 2017
May 22, 2017
May 9, 2017
(Electronic) Receipt
Search/Exam
May 9, 2017
Jan 12, 2017
Annex to the communication
Search/Exam
Jan 12, 2017
Communication from the Examining Division
Search/Exam
Jan 6, 2017
Examination started
Search/Exam
Oct 11, 2016
Apr 26, 2016
CDS Clean up - amended applicant details
Search/Exam
Jan 8, 2015
Dec 12, 2014
Nov 20, 2014
Letter which had not been notified
Search/Exam
Oct 30, 2014
Oct 28, 2014
Communication to designated inventor
Search/Exam
Oct 28, 2014
Communication to designated inventor
Search/Exam
Oct 28, 2014
Communication to designated inventor
Search/Exam
Oct 7, 2014
Sep 15, 2014
(Electronic) Receipt
Search/Exam
Sep 15, 2014
Sep 15, 2014
Request for entry into the European phase
Search/Exam
Jul 30, 2014
Information on entry into European phase
Search/Exam
Oct 15, 2013
Sep 26, 2013
Copy of the international search report
Search/Exam
Sep 26, 2013
Published international application - A1
Search/Exam
Jul 24, 2013
Jul 24, 2013
Jul 24, 2013
Apr 3, 2013
Abstract
PCTISA
Apr 3, 2013
Claims
PCTISA
Apr 3, 2013
Description
PCTISA
Apr 3, 2013
Drawings
PCTISA
Apr 3, 2013