Disc Brake Device And Disc Brake Pad

Patent No. EP3929457 (titled "Disc Brake Device And Disc Brake Pad") was filed by Akebono Brake Industry on Jun 17, 2021. The application was issued on Apr 10, 2024.

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
VRI PATENT MONITORING ASSOCIATION	Jan 10, 2025	IPSILON BENELUX

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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Mar 9, 2026
Annex to the communication - opposition
Mar 9, 2026
Information concerning oral proceedings
Mar 9, 2026
Scanned annex to a communication - opposition procedure
Mar 9, 2026
Summons to attend oral proceedings
Mar 9, 2026
Summons to attend oral proceedings
Mar 2, 2026
Notification concerning the date of oral proceedings
Mar 2, 2026
Notification concerning the date of oral proceedings
Feb 23, 2026
Brief communication - Opposition proceedings
Feb 13, 2026
(Electronic) Receipt
Feb 13, 2026
(Electronic) Receipt
Feb 13, 2026
Letter accompanying subsequently filed items
Feb 13, 2026
Letter accompanying subsequently filed items
Feb 13, 2026
Written submission in preparation to/during oral proceedings
Feb 13, 2026
Written submission in preparation to/during oral proceedings
Feb 13, 2026
Written submission in preparation to/during oral proceedings
Feb 13, 2026
Written submission in preparation to/during oral proceedings
Dec 5, 2025
Annex to the communication - opposition
Dec 5, 2025
Information concerning oral proceedings
Dec 5, 2025
Scanned annex to a communication - opposition procedure
Dec 5, 2025
Summons to attend oral proceedings
Dec 5, 2025
Summons to attend oral proceedings
Nov 20, 2025
Notification concerning the date of oral proceedings
Nov 20, 2025
Notification concerning the date of oral proceedings
Oct 20, 2025
Brief communication - Opposition proceedings
Oct 3, 2025
(Electronic) Receipt
Oct 3, 2025
Any annexes (other than citation) to an opposition letter
Oct 3, 2025
Letter accompanying subsequently filed items
Oct 3, 2025
Written submission in preparation to/during oral proceedings
Sep 29, 2025
Annex to the communication - opposition
Sep 29, 2025
Brief communication - Opposition proceedings
Sep 29, 2025
Brief communication - Opposition proceedings
Sep 29, 2025
Information concerning oral proceedings
Sep 29, 2025
Scanned annex to a communication - opposition procedure
Sep 29, 2025
Summons to attend oral proceedings
Sep 29, 2025
Summons to attend oral proceedings
Jul 24, 2025
Brief communication - Opposition proceedings
Jun 2, 2025
Brief communication - Opposition proceedings
May 22, 2025
(Electronic) Receipt
May 22, 2025
Auxiliary request during Opposition procedure
May 22, 2025
Auxiliary request during Opposition procedure
May 22, 2025
Auxiliary request during Opposition procedure
May 22, 2025
Auxiliary request during Opposition procedure
May 22, 2025
Auxiliary request during Opposition procedure
May 22, 2025
Auxiliary request during Opposition procedure
May 22, 2025
Auxiliary request during Opposition procedure
May 22, 2025
Auxiliary request during Opposition procedure - 01
May 22, 2025
Auxiliary request during Opposition procedure - 02
May 22, 2025
Auxiliary request during Opposition procedure - 03
May 22, 2025
Auxiliary request during Opposition procedure - 04
May 22, 2025
Auxiliary request during Opposition procedure - 05
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Description
May 22, 2025
Letter accompanying subsequently filed items
May 22, 2025
Reply of the patent proprietor to the notice(s) of opposition
Jan 30, 2025
Brief communication - Opposition proceedings
Jan 23, 2025
(Electronic) Receipt
Jan 23, 2025
Letter accompanying subsequently filed items
Jan 23, 2025
Letter regarding the opposition procedure (no time limit)
Jan 22, 2025
Communication of a notice of opposition and request to file observations
Jan 22, 2025
Notice of further oppositions to opponent(s)
Jan 15, 2025
Communication of a notice of opposition - first information to patent proprietor
Jan 10, 2025
(Electronic) Receipt
Jan 10, 2025
Citation in opposition procedure - 001
Jan 10, 2025
Citation in opposition procedure - 002
Jan 10, 2025
Citation in opposition procedure - 003
Jan 10, 2025
Citation in opposition procedure - 004
Jan 10, 2025
Citation in opposition procedure - 005
Jan 10, 2025
Citation in opposition procedure - 005
Jan 10, 2025
Citation in opposition procedure - 006
Jan 10, 2025
Citation in opposition procedure - 006
Jan 10, 2025
Consolidated list of cited opposition documents
Jan 10, 2025
Notice of opposition
Jan 10, 2025
Notice of opposition
Apr 23, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 14, 2024
Decision to grant a European patent
Mar 4, 2024
(Electronic) Receipt
Mar 4, 2024
Filing of the translations of the claims
Mar 4, 2024
French translation of claims
Mar 4, 2024
German translation of the claims
Nov 24, 2023
Annex to the communication about intention to grant a European patent
Nov 24, 2023
Bibliographic data of the European patent application
Nov 24, 2023
Communication about intention to grant a European patent
Nov 24, 2023
Intention to grant (signatures)
Nov 24, 2023
Text intended for grant (clean copy)
Nov 24, 2023
Text intended for grant (version for approval)
Nov 6, 2023
Examination started
Oct 24, 2022
(Electronic) Receipt
Oct 24, 2022
Amended claims filed after receipt of (European) search report
Oct 24, 2022
Amended claims with annotations
Oct 24, 2022
Amended description filed after receipt of (European) search report
Oct 24, 2022
Amended description with annotations
Oct 24, 2022
Amendments received before examination
Oct 24, 2022
Letter accompanying subsequently filed items
May 3, 2022
Invitation to confirm maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Mar 25, 2022
Communication regarding the transmission of the European search report
Mar 25, 2022
European search opinion
Mar 25, 2022
European search report
Mar 25, 2022
Information on Search Strategy
Mar 24, 2022
(Electronic) Receipt
Mar 24, 2022
Letter accompanying subsequently filed items
Mar 24, 2022
Letter filed before dispatch of the 1st communication from the Examining Division(examination procedure)
Jan 24, 2022
Amendments not yet acceptable
Jan 12, 2022
(Electronic) Receipt
Jan 12, 2022
Amended claims with annotations
Jan 12, 2022
Annex
Jan 12, 2022
Letter accompanying subsequently filed items
Jan 12, 2022
Reply to the invitation to clarify the claims/the subject matter of the application
Dec 1, 2021
Notification of forthcoming publication
Nov 13, 2021
Modified abstract
Nov 5, 2021
Annex to the communication
Nov 5, 2021
Invitation to indicate the claims to be searched
Oct 28, 2021
Search started
Jun 22, 2021
Priority document (electronically transmitted)
Jun 17, 2021
Abstract
Jun 17, 2021
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Jun 17, 2021
Claims
Jun 17, 2021
Description
Jun 17, 2021
Designation of inventor
Jun 17, 2021
Drawings
Jun 17, 2021
Request for grant of a European patent

EP3929457

AKEBONO BRAKE INDUSTRY

Application Number: EP21180073A
Filing Date: Jun 17, 2021
Status: Granted And Under Opposition; Mar 8, 2024
Publication Date: Apr 10, 2024
External Links: Slate, Register , Google Patents

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Disc Brake Device And Disc Brake Pad

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Dossier Documents

EP3929457