IP Verse

Magnesium Oxide For Annealing Separators, And Grain-Oriented Magnetic Steel Sheet

Patent No. EP3438324 (titled "Magnesium Oxide For Annealing Separators, And Grain-Oriented Magnetic Steel Sheet") was filed by Tateho Chemical Industries on Mar 16, 2017. The application was issued on Jun 24, 2020.

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
DEAD SEA BROMINEMar 24, 2021HOYNG ROKH MONEGIER

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

EP3438324

TATEHO CHEMICAL INDUSTRIES
Application Number
EP17774395A
Filing Date
Mar 16, 2017
Status
Opposition Rejected
Mar 7, 2025
Publication Date
Jun 24, 2020
External Links
Slate, Register , Google Patents