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KONOSHIMA CHEMICAL PATENTS FACING OPPOSITIONS

Top patents of KONOSHIMA CHEMICAL facing oppositions at the European Patent Office (EPO).

Patent Number Grant Date Patent Title Expected Expiration Date Facing Oppositions Activity Alert
EP2980021B1 Magnesium oxide particles, resin composition, rubber composition, and molded article NA 1
EP3456687B1 06 Oct, 2021 Magnesium oxide powder, and production method therefor NA 1
EP3111957B1 21 Nov, 2018 Magnesium oxide granules for pharmaceutical applications or food additive applications NA 1