Doug Siegel is an intellectual property attorney with extensive experience representing clients in the preparation and prosecution of patents and providing related opinions. He has particular experience dealing with cell and molecular biology patents.

  • Focuses on life science industry technologies, including diagnostic immunoassays, polymerase chain reaction (PCR) assays, microarrays, small molecule drugs, biopharmaceuticals, transcription devices, transgenic mice, cell lines, crystallized proteins, medical therapies, and medical systems 
  • Prepares joint-development agreements, licenses, and other intellectual property related contracts 
  • Litigates claims related to patents, trademarks, trade dress, copyrights, and trade secrets in state and federal courts and administrative tribunals



Representative Matters

  • Prior to law, worked as a research assistant at:
    • University of Wisconsin, Department of Pediatrics and Psychology, 1981-1982
    • Pabst Brewing Company, Department of Quality Assurance, analytical and instrumental chemistry, 1980
    • Veterans Administration Medical Center, Department of Cardiopulmonary Research, 1977

Prior Experience

  • Price, Heneveld, Cooper, DeWitt & Litton, Partner, 1996-2011
  • Marshall, O’Toole, Gerstein, Murray & Borun, Litigator, 1990-1996
  • Siegel Legal Services, S.C., 1988-1990
  • Starobin & Associates, S.C., Associate, 1985-1988

Academic Appointments

  • Grand Valley State University, Biotechnology Course, “Biotechnology and the Law,” Grand Rapids, MI (2009-2010), Guest Lecturer
  • University of Wisconsin-Milwaukee, MBA Practicum, “Survey of Intellectual Property Law,” Milwaukee, WI (1994), Guest Lecturer
  • MBTI Center for Legal Technology, “An Introduction to Law,” Milwaukee, Wisconsin (1987-1988), Instructor




Court Admissions



  • The Best Lawyers in America, 2017-2024
    • Recognized in practice areas of:
      • Copyright Law
      • Patent Law
      • Trademark Law
  • Law Bulletin Media
    • Leading Lawyers, Patent Law, 2017, 2023-2024
    • Leading Lawyers, Intellectual Property Law, 2017, 2023-2024

Professional & Community Involvement

  • State Bar of Michigan
  • MichBio, Intellectual Property and Legislation Committee
  • American Intellectual Property Law Association
    • Biotechnology and Litigation Sections
  • Intellectual Property Law Association of Chicago, Biotechnology Section
  • Grand Rapids Bar Association
    • Intellectual Property Law Section
    • Litigation Section
  • Michigan Patent Law Association
  • Michigan Israel Business Bridge
  • Temple Emanuel, Grand Rapids, Michigan, Board of Trustees, 2002-2004

News & Insights


  • Douglas H. Siegel joining Honigman highlighted in the Kalamazoo Gazette and MLive.com
    Media | Also highlighted in the AmLaw Daily, Grand Rapids Legal News and the MichBio website |


  • Case Law Trends in Biotech
    Event | Grand Rapids, MI | | Presenter
  • Emerging Business: Protecting IP – Patent Reform, PTO Changes & Court Decisions
    Event | Grand Rapids, MI | | Moderator
  • The Impact of Intellectual Property on the Current Economy
    Event | | Speaker
  • Intellectual Property for Small Business
    Event | Grand Rapids, MI | | | Speaker
  • IP Law – Background & Trends
    Event | Grand Rapids, MI | | | Speaker
  • Intellectual Property Assets in Sale of a Business
    Event | Grand Rapids, MI | | | Speaker
  • Patent Interference Practice
    Event | Milwaukee, WI | | | Speaker


  • Stimulus Duration as an Age Dependent Factor in Reflex Blinking
    Publication | Developmental Psychobiology, 20(3): 285-297 |
  • Filtering Hospital Air Decreases Aspergillus Spore Counts
    Publication | American Review of Respiratory Disease, 119: 511 513 |
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