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Explore patent oppositions filed by Nippon Steel Chemical against competitors, revealing strategic technology disputes and market positioning. Monitor opposition details, timelines, and disputed innovations to understand competitive dynamics and IP enforcement strategy.

Last updated on: Jun 26, 2025
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

EP2984152Organic Electroluminescent DeviceMERCK PATENTJan 25, 2019
EP3044286Organic Electroluminescent DeviceMERCK PATENTOct 29, 2018
EP2984692Organic Electroluminescent Device With Thermally Activated Delayed Fluorescence MaterialMERCK PATENTOct 24, 2018

Explore Nippon Steel Chemical'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
EP2138486Oct 19, 2022Compound For Organic Electroluminescent Device And Organic Electroluminescent Device2