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East Japan Railway competitive analysis

Explore East Japan Railway'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: Jan 8, 2026
Patent NumberPublication DateTitleTotal Oppositions

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Sep 27, 2023Railroad Vehicle Brake Disc1

Latest PTAB cases involving East Japan Railway

Discover the latest PTAB cases involving East Japan Railway, highlighting their recent legal challenges and patent disputes.

Peer Comparison New

IP litigation analysis comparing East Japan Railway with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Jan 8, 2026
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
EAST JAPAN RAILWAY - 1 - -
SIEMENS MOBILITY AUSTRIA64 - -