CompanyCompetitive AnalysisCompany Patent Opposition Analysis

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: Aug 21, 2025
Patent NumberGrant DateTitleTotal Oppositions
Nov 22, 2017Polyvinyl Alcohol And Purification Method Thereof1

Top competitors of Chang Chun Petrochemical

Top competitors of Chang Chun Petrochemical based on patent oppositions.