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IP Verse

Magnesium Oxide For Annealing Separators, And Grain-Oriented Magnetic Steel Sheet - EP3438295

The patent EP3438295 was granted to Tateho Chemical Industries on Dec 16, 2020. The application was originally filed on Mar 16, 2017 under application number EP17774396A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP3438295

TATEHO CHEMICAL INDUSTRIES
Application Number
EP17774396A
Filing Date
Mar 16, 2017
Status
Opposition Rejected
Mar 7, 2025
Publication Date
Dec 16, 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.

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DEAD SEA BROMINESep 16, 2021HOYNG ROKH MONEGIER -

Patent Citations (14) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTJP2004052084
INTERNATIONAL-SEARCH-REPORTJP2008260668
INTERNATIONAL-SEARCH-REPORTJP2014156620
INTERNATIONAL-SEARCH-REPORTWO2008047999
OPPOSITIONJP2004052084
OPPOSITIONJPH11158558
OPPOSITIONUS4775430
OPPOSITIONUS4948675
OPPOSITIONUS9194016
SEARCHJP2004052084
SEARCHJP2008260668
SEARCHJP3091096B
SEARCHJPH06101059
SEARCHUS4775430

Dossier Documents

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