CompanyCompetitive AnalysisCompany Patent Opposition Analysis

Explore Unicharm'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 28, 2025
Patent NumberGrant DateTitleTotal Oppositions
Jul 28, 2021Absorbent Article1
Jul 21, 2021Method And Device For Producing Absorbent Article, And Absorbent Article1
May 12, 2021Pants-Type Absorbent Article1
Sep 23, 2020Disposable Diaper2
Aug 26, 2020Disposable Wearable Article3
Mar 28, 2018Method For Producing Absorbent Article1
Jul 19, 2017Underwear-Type Worn Article1

Top competitors of Unicharm

Top competitors of Unicharm based on patent oppositions.