Layered Product For Fuel Batteries

Patent No. EP4026693 (titled "Layered Product For Fuel Batteries") was filed by Toyobo on Aug 27, 2020. The application was issued on Aug 13, 2025.

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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Aug 26, 2025
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 17, 2025
Decision to grant a European patent
Jul 3, 2025
(Electronic) Receipt
Jul 3, 2025
Filing of the translations of the claims
Jul 3, 2025
French translation of claims
Jul 3, 2025
German translation of the claims
Jul 3, 2025
Letter accompanying subsequently filed items
May 23, 2025
Annex to the communication about intention to grant a European patent
May 23, 2025
Bibliographic data of the European patent application
May 23, 2025
Communication about intention to grant a European patent
May 23, 2025
Intention to grant (signatures)
May 23, 2025
Text intended for grant (clean copy)
May 23, 2025
Text intended for grant (version for approval)
Apr 11, 2025
Examination started
Jul 11, 2024
(Electronic) Receipt
Jul 11, 2024
Letter accompanying subsequently filed items
Mar 16, 2023
(Electronic) Receipt
Mar 16, 2023
Amended claims filed after receipt of (European) search report
Mar 16, 2023
Amended claims with annotations
Mar 16, 2023
Amendments received before examination
Mar 16, 2023
Letter accompanying subsequently filed items
Oct 11, 2022
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Sep 22, 2022
Communication regarding the transmission of the European search report
Sep 22, 2022
European search opinion
Sep 22, 2022
Information on Search Strategy
Sep 22, 2022
Supplementary European search report
Sep 12, 2022
Search started
Jun 15, 2022
Notification of forthcoming publication
May 18, 2022
Communication of the registration of a transfer or change of name and/or address
May 13, 2022
Annexes in respect of a client data request
May 13, 2022
Letter accompanying subsequently filed items
May 13, 2022
Submission concerning change of applicant's address
Apr 11, 2022
Request for a change to the title of the invention
Apr 6, 2022
Copy of the international preliminary report on patentability
Apr 6, 2022
Translation of the international preliminary report on patentability
Mar 21, 2022
Copy of the international preliminary report on patentability
Mar 21, 2022
Translation of the international preliminary report on patentability
Feb 24, 2022
(Electronic) Receipt
Feb 24, 2022
Abstract
Feb 24, 2022
Amended description filed after receipt of (European) search report
Feb 24, 2022
Amended description with annotations
Feb 24, 2022
Amended drawings filed after receipt of (European) search report
Feb 24, 2022
Amended drawings with annotations
Feb 24, 2022
Claims
Feb 24, 2022
Description
Feb 24, 2022
Drawings
Feb 24, 2022
Request for entry into the European phase
Jan 14, 2022
Information on entry into European phase
Jun 4, 2021
Notification of the recording of a change
Jun 4, 2021
Notification of the recording of a change
Jun 4, 2021
Notification of the recording of a change
Jun 4, 2021
Notification of the recording of a change
Jun 4, 2021
Notification of the recording of a change
Mar 29, 2021
Priority document (electronically transmitted)
Mar 11, 2021
Copy of the international search report
Mar 11, 2021
Copy of the translated international search report
Mar 11, 2021
International publication pamphlet

EP4026693

TOYOBO

Application Number: EP20860884A
Filing Date: Aug 27, 2020
Status: Granted And Under Opposition; Jul 11, 2025
Publication Date: Aug 13, 2025
External Links: Slate, Register , Google Patents

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Layered Product For Fuel Batteries

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Dossier Documents

EP4026693