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Redox Flow Batteries Based On Supporting Solutions Containing Chloride

Patent No. EP2622675 (titled "Redox Flow Batteries Based On Supporting Solutions Containing Chloride") was filed by Battelle Memorial Institute on Jun 8, 2011. The application was issued on Mar 26, 2025.

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Patent Oppositions

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
IPSIDE	Jun 23, 2025	-

Dossier Documents

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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Dec 10, 2025
Brief communication - Opposition proceedings
Dec 4, 2025
(Electronic) Receipt
Dec 4, 2025
Auxiliary request during Opposition procedure
Dec 4, 2025
Auxiliary request during Opposition procedure
Dec 4, 2025
Auxiliary request during Opposition procedure
Dec 4, 2025
Auxiliary request during Opposition procedure
Dec 4, 2025
Auxiliary request during Opposition procedure - 01
Dec 4, 2025
Auxiliary request during Opposition procedure - 02
Dec 4, 2025
Auxiliary request during Opposition procedure - 03
Dec 4, 2025
Auxiliary request during Opposition procedure - 04
Dec 4, 2025
Letter accompanying subsequently filed items
Dec 4, 2025
Main request during Opposition procedure
Dec 4, 2025
Reply of the patent proprietor to the notice(s) of opposition
Dec 4, 2025
Reply of the patent proprietor to the notice(s) of opposition
Dec 1, 2025
Brief communication - Opposition proceedings
Dec 1, 2025
Rejection of request for extension of time limit
Nov 26, 2025
Brief communication - Opposition proceedings
Nov 21, 2025
(Electronic) Receipt
Nov 21, 2025
Letter accompanying subsequently filed items
Nov 21, 2025
Request for extension of time limit
Aug 6, 2025
Communication of a notice of opposition and request to file observations
Aug 6, 2025
Miscellaneous requests concerning client data
Aug 6, 2025
Notice of further oppositions to opponent(s)
Jun 26, 2025
Communication of a notice of opposition - first information to patent proprietor
Jun 23, 2025
(Electronic) Receipt
Jun 23, 2025
Citation in opposition procedure - 001
Jun 23, 2025
Citation in opposition procedure - 002
Jun 23, 2025
Citation in opposition procedure - 003
Jun 23, 2025
Citation in opposition procedure - 004
Jun 23, 2025
Citation in opposition procedure - 005
Jun 23, 2025
Citation in opposition procedure - 006
Jun 23, 2025
Citation in opposition procedure - 007
Jun 23, 2025
Citation in opposition procedure - 007
Jun 23, 2025
Citation in opposition procedure - 008
Jun 23, 2025
Citation in opposition procedure - 008
Jun 23, 2025
Citation in opposition procedure - 009
Jun 23, 2025
Citation in opposition procedure - 009
Jun 23, 2025
Citation in opposition procedure - 010
Jun 23, 2025
Citation in opposition procedure - 010
Jun 23, 2025
Citation in opposition procedure - 011
Jun 23, 2025
Citation in opposition procedure - 011
Jun 23, 2025
Citation in opposition procedure - 012
Jun 23, 2025
Citation in opposition procedure - 013
Jun 23, 2025
Consolidated list of cited opposition documents
Jun 23, 2025
Notice of opposition
Jun 23, 2025
Notice of opposition
Nov 26, 2024
Communication concerning correction of publication errors in European patent specification
Nov 20, 2024
(Electronic) Receipt
Nov 20, 2024
Letter accompanying subsequently filed items
Nov 20, 2024
Refund of fees
Nov 20, 2024
Request for correction of the publication
Nov 6, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 26, 2024
Decision to grant a European patent
Sep 4, 2024
(Electronic) Receipt
Sep 4, 2024
Filing of the translations of the claims
Sep 4, 2024
French translation of claims
Sep 4, 2024
German translation of the claims
Sep 4, 2024
Letter accompanying subsequently filed items
Aug 30, 2024
Annex to the communication about intention to grant a European patent
Aug 30, 2024
Bibliographic data of the European patent application
Aug 30, 2024
Communication about intention to grant a European patent
Aug 30, 2024
Intention to grant (signatures)
Aug 30, 2024
Text intended for grant (clean copy)
Aug 30, 2024
Text intended for grant (version for approval)
May 29, 2024
Annex to a communication
May 29, 2024
Annex to a communication
May 29, 2024
Annex to the communication
May 29, 2024
Consultation by telephone/in person
May 29, 2024
Result of consultation by telephone/in person
May 15, 2024
(Electronic) Receipt
May 15, 2024
Amended description with annotations
May 15, 2024
Description
May 15, 2024
Letter accompanying subsequently filed items
May 15, 2024
Reply to communication from the Examining Division
Apr 2, 2024
Annex to the communication
Apr 2, 2024
Communication from the Examining Division
Nov 14, 2023
(Electronic) Receipt
Nov 14, 2023
Amended claims with annotations
Nov 14, 2023
Annex
Nov 14, 2023
Annex
Nov 14, 2023
Claims
Nov 14, 2023
Letter accompanying subsequently filed items
Nov 14, 2023
Reply to communication from the Examining Division
Jul 14, 2023
Annex to a communication
Jul 14, 2023
Annex to a communication
Jul 14, 2023
Annex to a communication
Jul 14, 2023
Annex to the communication
Jul 14, 2023
Communication from the Examining Division
Jul 10, 2023
Communication for party to proceedings/third party
Jun 22, 2023
Annex
Jun 22, 2023
Annex
Jun 22, 2023
Annex
Jun 22, 2023
Annex
Jun 22, 2023
Annex
Jun 22, 2023
Annex
Jun 22, 2023
Observations by third parties
Apr 25, 2023
Acknowledgement of receipt of third party observations
Apr 25, 2023
Transmittal of third party observations to applicant
Apr 19, 2023
Non-patent literature filed by a third party
Apr 19, 2023
Non-patent literature filed by a third party
Apr 19, 2023
Observations by third parties
Apr 19, 2023
Patent document filed by a Third party
Apr 19, 2023
Patent document filed by a Third party
Apr 19, 2023
Patent document filed by a Third party
Apr 19, 2023
Patent document filed by a Third party
Apr 19, 2023
Patent document filed by a Third party
Apr 6, 2023
(Electronic) Receipt
Apr 6, 2023
Filing of the translations of the claims
Apr 6, 2023
French translation of claims
Apr 6, 2023
German translation of the claims
Apr 6, 2023
Letter accompanying subsequently filed items
Apr 6, 2023
Request for delayed grant (upcoming introduction of UPP)
Mar 9, 2023
(Electronic) Receipt
Mar 9, 2023
Letter accompanying subsequently filed items
Mar 9, 2023
Letter concerning the inventor
Dec 1, 2022
Annex to the communication about intention to grant a European patent
Dec 1, 2022
Bibliographic data of the European patent application
Dec 1, 2022
Communication about intention to grant a European patent
Dec 1, 2022
Intention to grant (signatures)
Dec 1, 2022
Text intended for grant (clean copy)
Dec 1, 2022
Text intended for grant (version for approval)
May 26, 2022
(Electronic) Receipt
May 26, 2022
Amended description with annotations
May 26, 2022
Description
May 26, 2022
Letter accompanying subsequently filed items
May 26, 2022
Reply to communication from the Examining Division
May 3, 2022
Annex to the communication
May 3, 2022
Communication from the Examining Division
May 4, 2021
(Electronic) Receipt
May 4, 2021
Annex
May 4, 2021
Letter accompanying subsequently filed items
May 4, 2021
Reply to communication from the Examining Division
Feb 23, 2021
Grant of extension of time limit (examination procedure)
Feb 17, 2021
(Electronic) Receipt
Feb 17, 2021
Letter accompanying subsequently filed items
Feb 17, 2021
Request for extension of time limit to communication from the Examining Division
Nov 5, 2020
Annex to the communication
Nov 5, 2020
Communication from the Examining Division
Sep 18, 2020
Communication of amended entries concerning the representative
Sep 14, 2020
Letter accompanying subsequently filed items
Sep 14, 2020
Letter accompanying subsequently filed items
Sep 14, 2020
Submission concerning change of applicant's representative
Mar 10, 2020
(Electronic) Receipt
Mar 10, 2020
Annex
Mar 10, 2020
Citation for the examination procedure
Mar 10, 2020
Letter accompanying subsequently filed items
Mar 10, 2020
Reply to communication from the Examining Division
Feb 5, 2020
Grant of extension of time limit (examination procedure)
Jan 30, 2020
(Electronic) Receipt
Jan 30, 2020
Letter accompanying subsequently filed items
Jan 30, 2020
Request for extension of time limit to communication from the Examining Division
Oct 2, 2019
Annex to the communication
Oct 2, 2019
Communication from the Examining Division
Sep 26, 2018
(Electronic) Receipt
Sep 26, 2018
General enquiry
Sep 26, 2018
Letter accompanying subsequently filed items
Sep 24, 2018
(Electronic) Receipt
Sep 24, 2018
Amended claims with annotations
Sep 24, 2018
Claims
Sep 24, 2018
Letter accompanying subsequently filed items
Sep 24, 2018
Reply to communication from the Examining Division
Jul 25, 2018
Grant of extension of time limit (examination procedure)
Jul 18, 2018
(Electronic) Receipt
Jul 18, 2018
Letter accompanying subsequently filed items
Jul 18, 2018
Request for extension of time limit to communication from the Examining Division
Mar 21, 2018
Annex to the communication
Mar 21, 2018
Communication from the Examining Division
Mar 1, 2018
Examination started
Dec 14, 2017
Notification regarding date of start of examination with possibility to withdraw
Apr 20, 2017
Submission concerning representation
Apr 28, 2016
(Electronic) Receipt
Apr 28, 2016
Citation for the examination procedure
Apr 28, 2016
Citation for the examination procedure
Apr 28, 2016
Citation for the examination procedure
Apr 28, 2016
Citation for the examination procedure
Apr 28, 2016
Citation for the examination procedure
Apr 28, 2016
Letter accompanying subsequently filed items
Apr 28, 2016
Reply from applicant/patentee regarding third party observations
Jan 4, 2016
Acknowledgement of receipt of third party observations
Jan 4, 2016
Transmittal of third party observations to applicant
Dec 15, 2015
(Electronic) Receipt
Dec 15, 2015
Letter accompanying subsequently filed items
Dec 15, 2015
Observations by third parties
Dec 15, 2015
Observations by third parties
Dec 15, 2015
Patent document filed by a Third party
Dec 15, 2014
(Electronic) Receipt
Dec 15, 2014
Amended claims filed after receipt of (European) search report
Dec 15, 2014
Amended claims with annotations
Dec 15, 2014
Amendments received before examination
Dec 15, 2014
Citation for the examination procedure
Dec 15, 2014
Letter accompanying subsequently filed items
Jun 13, 2014
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
May 26, 2014
Communication regarding the transmission of the European search report
May 26, 2014
European search opinion
May 26, 2014
Supplementary European search report
May 7, 2014
Search started
Jul 10, 2013
Notification on forthcoming publication of bibliographic data
Jun 19, 2013
Invitation to indicate correct address of inventor
Jun 19, 2013
Invitation to indicate correct address of inventor
Jun 19, 2013
Invitation to indicate correct address of inventor
Jun 5, 2013
Letter which had not been notified
May 28, 2013
Letter which had not been notified
May 22, 2013
Letter which had not been notified
May 8, 2013
Communication regarding possible amendment of the application/payment of claims fee
May 6, 2013
Communication to designated inventor
May 6, 2013
Communication to designated inventor
May 6, 2013
Communication to designated inventor
May 6, 2013
Communication to designated inventor
May 6, 2013
Communication to designated inventor
May 6, 2013
Communication to designated inventor
May 6, 2013
Communication to designated inventor
May 6, 2013
Communication to designated inventor
Apr 15, 2013
Copy of the international preliminary report on patentability
Feb 26, 2013
(Electronic) Receipt
Feb 26, 2013
Amended claims filed after receipt of (European) search report
Feb 26, 2013
Amendments received before examination
Feb 26, 2013
Request for entry into the European phase
Feb 15, 2013
Information on entry into European phase
May 11, 2012
Priority document (electronically transmitted)
Apr 12, 2012
Copy of the international search report
Apr 12, 2012
Published international application - A1

EP2622675

BATTELLE MEMORIAL INSTITUTE

Application Number: EP11831069A
Filing Date: Jun 8, 2011
Status: Granted And Under Opposition; Sep 19, 2024
Publication Date: Mar 26, 2025
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