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Processes For The Production Of Fluoropropanes And Halopropenes And Azeotropic Compositions Of 2-Chloro-3,3,3-Trifluoro-1-Propene With Hf And Of 1,1,1,2,2-Pentafluoropropane With Hf

Patent No. EP2091897 (titled "Processes For The Production Of Fluoropropanes And Halopropenes And Azeotropic Compositions Of 2-Chloro-3,3,3-Trifluoro-1-Propene With Hf And Of 1,1,1,2,2-Pentafluoropropane With Hf") was filed by EI DU Pont DE Nemours on Oct 31, 2007. The application was issued on Dec 1, 2021.

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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
ARKEMA FRANCEJan 29, 2016BANDPAY & GREUTER
DAIKIN INDUSTRIESJan 29, 2016HOFFMANN EITLE
MEXICHEM FLUOR DE CVJan 29, 2016POTTER CLARKSON

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EP2091897

EI DU PONT DE NEMOURS
Application Number
EP07853043A
Filing Date
Oct 31, 2007
Status
Patent Maintained As Amended
Oct 29, 2021
Publication Date
Dec 1, 2021
External Links
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