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IP Verse

Method Of Preparing Of 60% Or More Cis-Di(C4-C20)Alkyl Cyclohexane-1,4-Dicarboxylate - EP2344443

The patent EP2344443 was granted to Hanwha Chemical on Sep 18, 2019. The application was filed on Oct 16, 2009 under application number EP09820788A. The patent is currently recorded with a legal status of "Revoked".

EP2344443

HANWHA CHEMICAL
Application Number
EP09820788A
Filing Date
Oct 16, 2009
Status
Revoked
Nov 1, 2024
Publication Date
Sep 18, 2019
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 16, 2020GODEMEYER BLUM LENZE PATENTANWALTE PARTNERSCHAFT MBB WERKPATENTADMISSIBLE

Patent Citations (18) New

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

Citation PhasePublication Number
DESCRIPTIONKR100635396B
DESCRIPTIONUS2005049341
DESCRIPTIONWO0078704
INTERNATIONAL-SEARCH-REPORTKR100635396B
OPPOSITIONDE10116812
OPPOSITIONDE10146847
OPPOSITIONDE10146869
OPPOSITIONUS2005038285
OPPOSITIONUST864003I
OPPOSITIONWO0078704
OPPOSITIONWO03029168
OPPOSITIONWO03103830
SEARCHUS2002132963
SEARCHUS2005049341
SEARCHUS5614486
SEARCHUS5986040
SEARCHWO0078704
SEARCHWO0196274

Dossier Documents

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