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Explore patent oppositions filed by Nippon Steel 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'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
EP3425080Jul 24, 2024H-Shaped Steel For Low Temperatures And Method For Manufacturing Same2
EP2964801Dec 6, 2023Metal-Coated Steel Strip4
EP3388706Sep 27, 2023Railroad Vehicle Brake Disc2
EP3439430Aug 23, 2023Induction Heating Device And Induction Heating Method2
EP3854987Aug 2, 2023Self-Locking Threaded Connection Partially In Non-Locking Engagement1
EP3992418Aug 2, 2023Self-Locking Threaded Connection Partially In Non-Locking Engagement1
EP3555412Jun 28, 2023Threaded Joint For Tubular Component1
EP4102025Jun 7, 2023Self-Locking Threaded Connection Partially In Non-Locking Engagement1
EP3854900May 3, 2023Steel Member, Steel Sheet, And Methods For Producing Same1
EP3093543Mar 15, 2023Threaded Joint For Steel Pipe2