Chang Chun Petrochemical competitive analysis

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Explore Chang Chun Petrochemical'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: Oct 23, 2025
Patent NumberGrant DateTitleTotal Oppositions
Nov 22, 2017Polyvinyl Alcohol And Purification Method Thereof1

Latest publications and patents of Chang Chun Petrochemical New

Explore the latest publications and patents granted to Chang Chun Petrochemical, showcasing their recent innovations and technological advancements.

Last updated on: Oct 21, 2025
Publication NumberPublication DateTitleLegal Status

Get instant update for new patents of Chang Chun Petrochemical

Nov 22, 2017Polyvinyl Alcohol And Purification Method ThereofRevoked

Latest PTAB cases involving Chang Chun Petrochemical

Discover the latest PTAB cases involving Chang Chun Petrochemical, highlighting their recent legal challenges and patent disputes.

Peer Comparison New

IP litigation analysis comparing Chang Chun Petrochemical with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Oct 23, 2025
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
CHANG CHUN PETROCHEMICAL - 1 - -
HOFFMANN EITLE148 - - -