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IP Verse

Method For Producing Methyl Tertiary-Butyl Ether - EP3395792

The patent EP3395792 was granted to LG Chem on Oct 22, 2025. The application was filed on Jan 4, 2018 under application number EP18736760A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3395792

LG CHEM
Application Number
EP18736760A
Filing Date
Jan 4, 2018
Status
Patent Maintained As Amended
Sep 19, 2025
Publication Date
Oct 22, 2025
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
EVONIK OPERATIONSJun 4, 2020EVONIK PATENT ASSOCIATIONADMISSIBLE

Patent Citations (12) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTEP0071238
INTERNATIONAL-SEARCH-REPORTJPH06199722
INTERNATIONAL-SEARCH-REPORTJPH09110769
INTERNATIONAL-SEARCH-REPORTKR830002476B
INTERNATIONAL-SEARCH-REPORTUS5789627
OPPOSITIONDE102006057856
OPPOSITIONEP0071238
OPPOSITIONEP1199296
OPPOSITIONUS2007203369
OPPOSITIONWO2004007412
SEARCHEP0071238
SEARCHUS3979461

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

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