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Use Of Refrigerants Comprising E-1,3,3,3-Tetrafluoropropene And At Least One Tetrafluoroethane For Cooling

Patent No. EP2652065 (titled "Use Of Refrigerants Comprising E-1,3,3,3-Tetrafluoropropene And At Least One Tetrafluoroethane For Cooling") was filed by EI DU Pont DE Nemours on Dec 14, 2011. The application was issued on May 15, 2019.

Patent Summary

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Patent Oppositions (2)

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 FRANCEApr 27, 2017CHAHINE
MEXICHEM FLUOR DE CVApr 27, 2017POTTER CLARKSON

Dossier Documents

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EP2652065

EI DU PONT DE NEMOURS
Application Number
EP11808448A
Filing Date
Dec 14, 2011
Status
Patent Maintained As Amended
Apr 12, 2019
Publication Date
May 15, 2019
External Links
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