Vehicular Disc Brake

Patent No. EP3809009 (titled "Vehicular Disc Brake") was filed by Hitachi Astemo on Jun 11, 2019. The application was issued on Oct 30, 2024.

Patent Summary

A vehicular disc brake that suppresses uneven wear of friction pads, comprising a caliper bracket, a caliper body, and friction pads disposed on both sides of a disc rotor. The caliper body has an action part with cylinder holes for pistons and a bridge part extending across the disc rotor's outer periphery. Thinned parts are formed in the bridge part's disc-radially inner wall, with one part on the disc turn-in side having a smaller volume than the other part on the disc turn-out side.

Patent Family

Patent Family

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.

CompanyOpposition DateRepresentative
VRI PATENT MONITORING ASSOCIATIONJul 30, 2025IPSILON 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

  • Get instant alerts for new documents

EP3809009

HITACHI ASTEMO
Application Number
EP19819182A
Filing Date
Jun 11, 2019
Status
Granted And Under Opposition
Sep 27, 2024
Publication Date
Oct 30, 2024