Hydroformylation Of Butenes Comprising Isobutylene

Patent No. EP1673332 (titled "Hydroformylation Of Butenes Comprising Isobutylene") was filed by Exxonmobil Chemical Patents on Sep 17, 2004. The application was issued on Jun 17, 2015.

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Patent Oppositions (3)

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
BASFMar 17, 2016BASF ASSOCIATION
EVONIK OPERATIONSMar 17, 2016EISENFUHR SPEISER
JOHNSON MATTHEY DAVYOct 21, 2015BOWN

Dossier Documents

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  • Date

    Description

EP1673332

EXXONMOBIL CHEMICAL PATENTS
Application Number
EP04765490A
Filing Date
Sep 17, 2004
Status
Revoked
Feb 23, 2018
Publication Date
Jun 17, 2015