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Winkler Dunnebier competitive analysis

Explore patent oppositions filed by Winkler Dunnebier against competitors, revealing strategic technology disputes and market positioning.

Last updated on: Jan 8, 2026
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by Winkler Dunnebier

Paper Handkerchief Folding DeviceC & S PAPERSep 25, 2020

Latest PTAB cases involving Winkler Dunnebier

Discover the latest PTAB cases involving Winkler Dunnebier, highlighting their recent legal challenges and patent disputes.

Peer Comparison New

IP litigation analysis comparing Winkler Dunnebier with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Jan 8, 2026
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
WINKLER DUNNEBIER1 - - -
C & S PAPER - 1 - -
DENG - 1 - -
ZHANG15 - -