Dirk Duffner

Technical

principal of Duffner Engineering

M.S., Mechanical Engineering — Stanford UniversityB.S., Mechanical Engineering — University of California, Los Angeles
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Dirk Duffner is primarily a technical expert in patent litigation, most active in Mechanical, Transport & Industrial with Plastics & Composites Manufacturing as the leading focus area, and has appeared in fewer than ten patent matters, most recently in 2024. Duffner holds a Master's and has been active since 2020.

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  • PTAB Final Written Decision outcomes
  • District court Daubert rulings
  • Representation history across parties and firms
  • Hourly rate history
  • Technology activity breakdown
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