Ferrous Based Friction Material

Patent No. EP3425234 (titled "Ferrous Based Friction Material") was filed by Akebono Brake Industry on Mar 23, 2018. The application was issued on Sep 24, 2025.

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 VERBAND DER REIBBELAGINDUSTRIE EV	Feb 7, 2022	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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Aug 28, 2025
Decision to maintain the European patent in amended form
Aug 28, 2025
Decision to maintain the European patent in amended form
Aug 18, 2025
(Electronic) Receipt
Aug 18, 2025
Filing of the translation of the amended claims
Aug 18, 2025
French translation of claims
Aug 18, 2025
German translation of the claims
Aug 18, 2025
Letter accompanying subsequently filed items
May 28, 2025
Communication of bibliographic data
May 28, 2025
Communication to opponent concerning maintenance
May 28, 2025
Communication with request to file translations
May 22, 2025
Maintenance of the patent with the documents specified in the final decision
Feb 21, 2025
Annex to the communication - opposition
Feb 21, 2025
Brief communication - Opposition proceedings
Feb 21, 2025
Brief communication - Opposition proceedings
Feb 21, 2025
Decision of the Opposition Division and instruction
Feb 21, 2025
Druckexemplar in opposition procedure
Feb 21, 2025
Grounds for the decision (Annex) - opposition
Feb 21, 2025
Interlocutory decision in opposition proceedings
Feb 21, 2025
Interlocutory decision in opposition proceedings
Feb 21, 2025
Means of redress
Feb 21, 2025
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 21, 2025
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Feb 21, 2025
Provision of a copy of the minutes - opposition procedure
Feb 21, 2025
Provision of a copy of the minutes - opposition procedure
Feb 21, 2025
Scanned annex to a communication - opposition procedure
Feb 21, 2025
Scanned annex to a communication - opposition procedure
Feb 21, 2025
Scanned annex to a communication - opposition procedure
Feb 21, 2025
Scanned annex to a communication - opposition procedure
Feb 21, 2025
Scanned annex to a communication - opposition procedure
Jan 28, 2025
Information about the result of oral proceedings
Jan 23, 2025
Brief communication - Opposition proceedings
Jan 22, 2025
(Electronic) Receipt
Jan 22, 2025
(Electronic) Receipt
Jan 22, 2025
Letter accompanying subsequently filed items
Jan 22, 2025
Letter accompanying subsequently filed items
Jan 22, 2025
Written submission in preparation to/during oral proceedings
Dec 3, 2024
Brief communication - Opposition proceedings
Dec 3, 2024
Brief communication - Opposition proceedings
Nov 28, 2024
(Electronic) Receipt
Nov 28, 2024
(Electronic) Receipt
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure
Nov 28, 2024
Auxiliary request during Opposition procedure - 01
Nov 28, 2024
Auxiliary request during Opposition procedure - 01
Nov 28, 2024
Auxiliary request during Opposition procedure - 01
Nov 28, 2024
Auxiliary request during Opposition procedure - 01
Nov 28, 2024
Auxiliary request during Opposition procedure - 02
Nov 28, 2024
Auxiliary request during Opposition procedure - 02
Nov 28, 2024
Auxiliary request during Opposition procedure - 02
Nov 28, 2024
Auxiliary request during Opposition procedure - 02
Nov 28, 2024
Auxiliary request during Opposition procedure - 03
Nov 28, 2024
Auxiliary request during Opposition procedure - 03
Nov 28, 2024
Auxiliary request during Opposition procedure - 03
Nov 28, 2024
Auxiliary request during Opposition procedure - 03
Nov 28, 2024
Auxiliary request during Opposition procedure - 04
Nov 28, 2024
Auxiliary request during Opposition procedure - 04
Nov 28, 2024
Auxiliary request during Opposition procedure - 04
Nov 28, 2024
Auxiliary request during Opposition procedure - 04
Nov 28, 2024
Auxiliary request during Opposition procedure - 05
Nov 28, 2024
Auxiliary request during Opposition procedure - 05
Nov 28, 2024
Auxiliary request during Opposition procedure - 05
Nov 28, 2024
Auxiliary request during Opposition procedure - 05
Nov 28, 2024
Auxiliary request during Opposition procedure - 06
Nov 28, 2024
Auxiliary request during Opposition procedure - 06
Nov 28, 2024
Auxiliary request during Opposition procedure - 06
Nov 28, 2024
Auxiliary request during Opposition procedure - 06
Nov 28, 2024
Auxiliary request during Opposition procedure - 07
Nov 28, 2024
Auxiliary request during Opposition procedure - 07
Nov 28, 2024
Auxiliary request during Opposition procedure - 08
Nov 28, 2024
Auxiliary request during Opposition procedure - 08
Nov 28, 2024
Letter accompanying subsequently filed items
Nov 28, 2024
Letter accompanying subsequently filed items
Nov 28, 2024
Main request during Opposition procedure
Nov 28, 2024
Main request during Opposition procedure
Nov 28, 2024
Written submission in preparation to/during oral proceedings
Nov 28, 2024
Written submission in preparation to/during oral proceedings
Nov 22, 2024
Brief communication - Opposition proceedings
Nov 14, 2024
(Electronic) Receipt
Nov 14, 2024
Letter accompanying subsequently filed items
Nov 14, 2024
Written submission in preparation to/during oral proceedings
Jun 18, 2024
Annex to the communication - opposition
Jun 18, 2024
Brief communication - Opposition proceedings
Jun 18, 2024
Brief communication - Opposition proceedings
Jun 18, 2024
Information concerning oral proceedings
Jun 18, 2024
Scanned annex to a communication - opposition procedure
Jun 18, 2024
Summons to attend oral proceedings
Jun 18, 2024
Summons to attend oral proceedings
Jul 5, 2022
Brief communication - Opposition proceedings
Jun 29, 2022
(Electronic) Receipt
Jun 29, 2022
Auxiliary request during Opposition procedure
Jun 29, 2022
Auxiliary request during Opposition procedure
Jun 29, 2022
Auxiliary request during Opposition procedure
Jun 29, 2022
Auxiliary request during Opposition procedure - 01
Jun 29, 2022
Auxiliary request during Opposition procedure - 02
Jun 29, 2022
Auxiliary request during Opposition procedure - 03
Jun 29, 2022
Letter accompanying subsequently filed items
Jun 29, 2022
Reply of the patent proprietor to the notice(s) of opposition
Feb 22, 2022
Communication of a notice of opposition and request to file observations
Feb 22, 2022
Notice of further oppositions to opponent(s)
Feb 10, 2022
Communication of a notice of opposition - first information to patent proprietor
Feb 7, 2022
(Electronic) Receipt
Feb 7, 2022
Citation in opposition procedure - 001
Feb 7, 2022
Citation in opposition procedure - 002
Feb 7, 2022
Consolidated list of cited opposition documents
Feb 7, 2022
Letter accompanying subsequently filed items
Feb 7, 2022
Notice of opposition
Feb 7, 2022
Notice of opposition
May 19, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 9, 2021
Decision to grant a European patent
Mar 29, 2021
(Electronic) Receipt
Mar 29, 2021
Filing of the translations of the claims
Mar 29, 2021
French translation of claims
Mar 29, 2021
German translation of the claims
Mar 29, 2021
Letter accompanying subsequently filed items
Dec 9, 2020
Bibliographic data of the European patent application
Dec 9, 2020
Communication about intention to grant a European patent
Dec 9, 2020
Intention to grant (signatures)
Dec 9, 2020
Text intended for grant (clean copy)
Dec 9, 2020
Text intended for grant (version for approval)
Aug 18, 2020
(Electronic) Receipt
Aug 18, 2020
Description
Aug 18, 2020
Letter accompanying subsequently filed items
Aug 18, 2020
Reply to communication from the Examining Division
May 6, 2020
Annex to the communication
May 6, 2020
Communication from the Examining Division
Apr 6, 2020
Examination started
Jul 9, 2019
(Electronic) Receipt
Jul 9, 2019
Amended claims filed after receipt of (European) search report
Jul 9, 2019
Amended claims with annotations
Jul 9, 2019
Amendments received before examination
Jul 9, 2019
Letter accompanying subsequently filed items
Jan 14, 2019
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Dec 12, 2018
Notification of forthcoming publication
Dec 7, 2018
Communication regarding the transmission of the European search report
Dec 7, 2018
European search opinion
Dec 7, 2018
European search report
Dec 7, 2018
Information on Search Strategy
Nov 19, 2018
Submission concerning representation
Oct 15, 2018
(Electronic) Receipt
Oct 15, 2018
Letter accompanying subsequently filed items
Oct 15, 2018
Reply to the invitation to clarify the claims/the subject matter of the application
Aug 13, 2018
Annex to the communication
Aug 13, 2018
Invitation to indicate the subject-matter to be searched
Aug 6, 2018
Search started
May 30, 2018
Confirmation of receipt of (electronically) transmitted priority document
May 23, 2018
Priority document (electronically transmitted)
May 23, 2018
Priority document (electronically transmitted)
May 16, 2018
Communication to designated inventor
May 16, 2018
Communication to designated inventor
Mar 23, 2018
Abstract
Mar 23, 2018
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Mar 23, 2018
Claims
Mar 23, 2018
Description
Mar 23, 2018
Designation of inventor
Mar 23, 2018
Drawings
Mar 23, 2018
Request for grant of a European patent

EP3425234

AKEBONO BRAKE INDUSTRY

Application Number: EP18163559A
Filing Date: Mar 23, 2018
Status: Patent Maintained As Amended; Aug 22, 2025
Publication Date: Sep 24, 2025
External Links: Slate, Register , Google Patents

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EP3425234