Power Module

Patent No. EP4187590 (titled "Power Module") was filed by Sumitomo Bakelite Coltd on Jul 2, 2021. The application was issued on Sep 24, 2025.

Patent Summary

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
DILGJun 24, 2026DILG

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

EP4187590

SUMITOMO BAKELITE COLTD
Application Number
EP21846068A
Filing Date
Jul 2, 2021
Status
Granted And Under Opposition
Aug 22, 2025
Publication Date
Sep 24, 2025