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Ei Du Pont De Nemours patent opposition analysis

Latest patents of Ei Du Pont De Nemours opposed by its competitors

Explore Ei Du Pont De Nemours's recently opposed patents, revealing key competitive challenges and strategic patent disputes in the industry. Track oppositions filed by competitors to understand technology battlegrounds and assess potential risks.

Last updated on: Jun 26, 2025
Patent NumberGrant DateTitleTotal Oppositions
EP2558544Sep 4, 2024Composition Comprising 2,3,3,3-Tetrafluoropropene And 1,1,1,2-Tetrafluoroethane, Chillers Containing Same And Methods Of Producing Cooling Therein3
EP2089466Jan 30, 2019Polyamide Housings For Portable Electronic Devices1
EP2590915Sep 6, 2017Synthesis Of 1234Yf By Selective Dehydrochlorination Of 244Bb1
EP2678301Aug 23, 2017Catalytic Dehydrochlorination Of Hydrochlorofluorocarbons1
EP2678298Apr 5, 2017Catalytic Dehydrochlorination Of Hydrochlorofluorocarbons1