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IP Verse

Kabushiki Kaisha Riken competitive analysis

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Latest patents of Kabushiki Kaisha Riken opposed by its competitors

Explore Kabushiki Kaisha Riken'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: Nov 13, 2025
Patent NumberPublication DateTitleTotal Oppositions
EP3779244
Sep 25, 2024Spacer Expander And Oil Control Ring Including Same1
EP3321543
Apr 17, 2024Internal Combustion Engine Piston Ring1
EP3660180
Apr 12, 2023Sliding Member And Piston Ring1
EP3064810
Mar 31, 2021Piston Ring And Method For Manufacturing Same1
EP3273113
Dec 2, 2020Piston Ring1
EP3421846
Nov 18, 2020Piston Ring1
EP3163129
Oct 14, 2020Piston Ring1
EP3406865
Jan 29, 2020Sintered Valve Seat1

Latest PTAB cases involving Kabushiki Kaisha Riken

Discover the latest PTAB cases involving Kabushiki Kaisha Riken, highlighting their recent legal challenges and patent disputes.

Peer Comparison New

IP litigation analysis comparing Kabushiki Kaisha Riken with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Nov 13, 2025
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
KABUSHIKI KAISHA RIKEN - 8 - -
FEDERAL MOGUL BURSCHEID56 - -
MAHLE8220 - -