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The patent EP2992582 was granted to Level Energy on Jan 31, 2018. The application was filed on Apr 28, 2014 under application number EP14726513A. 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 |
|---|---|---|---|
| NATIONAL GRID ELECTRICITY TRANSMISSION NATIONAL GRID ELECTRICITY SYSTEM OPERATOR NATIONAL GRID | Oct 31, 2018 | PALMER | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN102891495 |
| INTERNATIONAL-SEARCH-REPORT | EP2139090 |
| INTERNATIONAL-SEARCH-REPORT | US2010090532 |
| OPPOSITION | CN102891495 |
| OPPOSITION | EP2139090 |
| OPPOSITION | US2010072817 |
| OPPOSITION | US2010090532 |
| OPPOSITION | US2012323389 |
| OPPOSITION | WO2010094012 |
| OPPOSITION | WO2011112255 |
| OPPOSITION | WO2011127047 |
| OPPOSITION | WO2012175130 |
| OPPOSITION | WO2013068263 |
| OPPOSITION | WO2013086411 |
| OPPOSITION | WO2014170373 |
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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Jul 6, 2021
Refund of fees
Search/Exam
Jun 29, 2021
Jun 29, 2021
Jun 25, 2021
Feb 12, 2021
Feb 12, 2021
Dec 16, 2020
Withdrawal of an appeal
Appeal
Dec 16, 2020
Withdrawal of an appeal
Appeal
Nov 6, 2020
Nov 3, 2020
Oct 23, 2020
(Electronic) Receipt
Appeal
Oct 23, 2020
Oct 23, 2020
Reply to appeal
Appeal
Oct 8, 2020
Oct 7, 2020
(Electronic) Receipt
Appeal
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Sep 21, 2020
Sep 18, 2020
Sep 14, 2020
Sep 14, 2020
Sep 14, 2020
Sep 3, 2020
(Electronic) Receipt
Appeal
Sep 3, 2020
Sep 3, 2020
Jun 15, 2020
Jun 8, 2020
(Electronic) Receipt
Appeal
Jun 8, 2020
Jun 8, 2020
Jun 8, 2020
Jun 8, 2020
Claims
Appeal
Jun 8, 2020
Jun 8, 2020
Apr 16, 2020
Apr 16, 2020
Apr 7, 2020
(Electronic) Receipt
Appeal
Apr 7, 2020
Apr 7, 2020
Notice of appeal
Appeal
Feb 14, 2020
Feb 12, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Means of redress
OPPO
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Feb 11, 2020
Dec 16, 2019
Dec 13, 2019
Dec 13, 2019
Oct 21, 2019
Oct 21, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Oct 14, 2019
Claims
OPPO
Oct 14, 2019
Claims
OPPO
Oct 14, 2019
Claims
OPPO
Oct 14, 2019
Oct 11, 2019
Oct 11, 2019
Oct 11, 2019
Oct 10, 2019
Oct 10, 2019
Oct 10, 2019
Oct 10, 2019
Claims
OPPO
Oct 10, 2019
Claims
OPPO
Oct 10, 2019
Claims
OPPO
Oct 10, 2019
Jul 15, 2019
Jul 9, 2019
Jul 4, 2019
Jul 4, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 22, 2019
May 20, 2019
May 20, 2019
May 16, 2019
May 15, 2019
May 15, 2019
May 15, 2019
May 15, 2019
May 15, 2019
May 15, 2019
Mar 27, 2019
Mar 22, 2019
Mar 22, 2019
Mar 22, 2019
Mar 21, 2019
Mar 21, 2019
Mar 21, 2019
Mar 21, 2019
Authorisation
OPPO
Mar 21, 2019
Mar 21, 2019
Mar 21, 2019
Mar 21, 2019
Mar 19, 2019
Jan 14, 2019
Jan 10, 2019
Jan 10, 2019
Jan 9, 2019
Dec 28, 2018
Dec 28, 2018
Dec 28, 2018
Dec 28, 2018
Nov 12, 2018
Nov 12, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Oct 31, 2018
Feb 16, 2018
Jan 5, 2018
Decision to grant a European patent
Search/Exam
Dec 12, 2017
Filing of the translations of the claims
Search/Exam
Dec 12, 2017
French translation of claims
Search/Exam
Dec 12, 2017
German translation of the claims
Search/Exam
Oct 3, 2017
Oct 2, 2017
Oct 2, 2017
Oct 2, 2017
Intention to grant (signatures)
Search/Exam
Oct 2, 2017
Text intended for grant (clean copy)
Search/Exam
Oct 2, 2017
Aug 1, 2017
Amended claims with annotations
Search/Exam
Aug 1, 2017
Amended claims with annotations
Search/Exam
Aug 1, 2017
Amended description with annotations
Search/Exam
Aug 1, 2017
Claims
Search/Exam
Aug 1, 2017
Claims
Search/Exam
Aug 1, 2017
Description
Search/Exam
Aug 1, 2017
Jun 8, 2017
Annex to the communication
Search/Exam
Jun 8, 2017
Consultation by telephone/in person
Search/Exam
Jun 8, 2017
May 3, 2017
Apr 27, 2017
Mar 29, 2017
Annex to the communication
Search/Exam
Mar 29, 2017
Communication from the Examining Division
Search/Exam
Jan 20, 2017
Claims
Search/Exam
Jan 20, 2017
Claims
Search/Exam
Jan 20, 2017
Dec 12, 2016
Dec 2, 2016
Annexes in respect of a client data request
Search/Exam
Dec 2, 2016
Nov 10, 2016
Nov 10, 2016
Oct 13, 2016
Oct 6, 2016
Annex to the communication
Search/Exam
Oct 6, 2016
Communication from the Examining Division
Search/Exam
Sep 26, 2016
Examination started
Search/Exam
Aug 18, 2016
Annexes in respect of a client data request
Search/Exam
Aug 18, 2016
Authorisation
Search/Exam
Aug 18, 2016
Payment of fees and costs
Search/Exam
Aug 18, 2016
Jun 27, 2016
Jun 27, 2016
Amended claims with annotations
Search/Exam
Jun 27, 2016
Amendments received before examination
Search/Exam
Apr 29, 2016
Submission concerning representation
Search/Exam
Apr 24, 2016
Submission concerning representation
Search/Exam
Feb 10, 2016
Dec 16, 2015
Dec 14, 2015
Communication to designated inventor
Search/Exam
Dec 10, 2015
Nov 27, 2015
Authorisation
Search/Exam
Nov 27, 2015
Matter concerning the application
Search/Exam
Nov 27, 2015
Request for entry into the European phase
Search/Exam
Nov 16, 2015
Sep 11, 2015
Information on entry into European phase
Search/Exam
Dec 24, 2014
Copy of the international search report
Search/Exam
Dec 24, 2014
Nov 25, 2014
Nov 25, 2014
Nov 25, 2014
Nov 6, 2014
Published international application - A2
Search/Exam
Nov 5, 2014
Nov 5, 2014
Nov 5, 2014
May 19, 2014
Abstract
PCTRO
May 19, 2014
Claims
PCTRO
May 19, 2014
Description
PCTRO
May 19, 2014
Drawings
PCTRO
Apr 28, 2014