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Idemitsu Kosan patent opposition analysis

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Latest patents of Idemitsu Kosan opposed by its competitors

Explore Idemitsu Kosan'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.

Patent NumberGrant DateTitleTotal Oppositions
EP3211038Feb 12, 2025Polycarbonate Resin Composition Including Polycarbonate-Polyorganosiloxane Copolymer, And Molded Article Of Same1
EP2987829Jul 17, 2024Polycarbonate-Type Resin Composition And Molded Article1
EP3950905Jan 17, 2024Lubricating Oil Composition1
EP2578636Jun 22, 2022Polycarbonate Resin Composition And Molded Polycarbonate Resin1
EP3279298Mar 16, 2022Lubricating Oil Composition And Method For Reducing Friction In Internal Combustion Engines2
EP3070126May 6, 2020Aromatic Polycarbonate Resin Molding1
EP3109299Jun 12, 2019Lubricating Oil Composition1
EP2871200Jan 30, 2019Polycarbonate-Polyorganosiloxane Copolymer And Method For Continuously Producing Same1
EP2826846Dec 5, 2018Lubricant Composition1
EP3045515Jul 18, 2018Refrigeration Machine Oil Composition1

Top competitors of Idemitsu Kosan