Nippon Piston Ring competitive analysis

Explore Nippon Piston Ring'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 10, 2026
Patent NumberPublication DateTitleTotal Oppositions
Dec 3, 2025Piston Ring1
Jun 26, 2019Composite Chromium Plating Film, And Sliding Member Equipped With The Film1
Sep 16, 2015Combined Oil Ring1

Latest PTAB cases involving Nippon Piston Ring

Discover the latest PTAB cases involving Nippon Piston Ring, highlighting their recent legal challenges and patent disputes.

Peer Comparison New

IP litigation analysis comparing Nippon Piston Ring with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Sep 10, 2026
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
NIPPON PISTON RING - 3 - -
HOFFMANN EITLE191 - - -
MAHLE15551 - -
SCHERDEL INNOTEC FORSCHUNGS UND ENTWICKLUNGS1 - - -