The weekly litigation news digest is live. Subscribe now

IP Verse

Magnesium Oxide For Annealing Separators, And Grain-Oriented Magnetic Steel Sheet - EP3438292

The patent EP3438292 was granted to Tateho Chemical Industries on Jun 24, 2020. The application was originally filed on Mar 16, 2017 under application number EP17774398A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP3438292

TATEHO CHEMICAL INDUSTRIES
Application Number
EP17774398A
Filing Date
Mar 16, 2017
Status
Opposition Rejected
Mar 7, 2025
Publication Date
Jun 24, 2020
External Links
Slate, Register, Google Patents

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 DateRepresentativeOpposition Status

Get instant alerts for new oppositions and patent status changes

DEAD SEA BROMINEMar 24, 2021HOYNG ROKH MONEGIER -

Patent Citations (11) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTJP2001303258
INTERNATIONAL-SEARCH-REPORTJP2014193790
INTERNATIONAL-SEARCH-REPORTJPH07316831
INTERNATIONAL-SEARCH-REPORTJPH1088244
INTERNATIONAL-SEARCH-REPORTJPH11181305
INTERNATIONAL-SEARCH-REPORTWO0183848
INTERNATIONAL-SEARCH-REPORTWO2008047999
OPPOSITIONJPH11158558
OPPOSITIONUS4249966
SEARCHJP2004162112
SEARCHJP2008260668

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