Kabushiki Kaisha Riken competitive analysis

Latest publications and patents of Kabushiki Kaisha Riken New

Explore the latest publications and patents granted to Kabushiki Kaisha Riken, showcasing their recent innovations and technological advancements.

Last updated on: Sep 24, 2025
Publication NumberPublication DateTitleLegal Status

Get instant update for new patents of Kabushiki Kaisha Riken

Aug 20, 2025Side Rail And Oil Control Ring Comprising SameGranted And Under Opposition
Sep 25, 2024Spacer Expander And Oil Control Ring Including SameGranted And Under Opposition
Apr 17, 2024Internal Combustion Engine Piston RingPatent Maintained As Amended
Apr 12, 2023Sliding Member And Piston RingGranted And Under Opposition
Mar 31, 2021Piston Ring And Method For Manufacturing SamePatent Maintained As Amended
Dec 2, 2020Piston RingGranted And Under Opposition
Nov 18, 2020Piston RingOpposition Rejected
Oct 14, 2020Piston RingRevoked
Jan 29, 2020Sintered Valve SeatGranted And Under Opposition

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: Sep 25, 2025
Patent NumberGrant DateTitleTotal Oppositions
Sep 25, 2024Spacer Expander And Oil Control Ring Including Same1
Apr 17, 2024Internal Combustion Engine Piston Ring1
Apr 12, 2023Sliding Member And Piston Ring1
Mar 31, 2021Piston Ring And Method For Manufacturing Same1
Dec 2, 2020Piston Ring1
Nov 18, 2020Piston Ring1
Oct 14, 2020Piston Ring1
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: Sep 25, 2025
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases FacedStrategy Type
KABUSHIKI KAISHA RIKEN - 8 - - Non-Active
FEDERAL MOGUL BURSCHEID56 - - Aggressive
MAHLE8120 - - Highly Aggressive