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David J. Harth

Listed in Best Lawyers since 2001

Perkins Coie LLP

David Harth, a partner in the Litigation practice, is a trial lawyer who has spent his career handling high-stakes civil litigation, often involving complex scientific and technical issues. He has more than 30 years of experience trying all types of cases, including patent, trademark and copyright infringement, product liability, environmental damage, engineering and accounting malpractice, civil rights, public law, securities fraud, insurance recovery, and Uniform Commercial Code actions. David also has considerable experience arguing cases in federal and state courts of appeal. For the past 20 years, he has focused on intellectual property litigation and has served as lead trial counsel in a number of high-profile patent and trademark infringement cases, many involving pharmaceuticals, biotechnology and human genetics. David makes extensive use of computerized litigation management systems and case presentation technology.

Case History

  • Other Court Admissions
    • U.S. Supreme Court
    • U.S. Court of Appeals for the Federal Circuit
    • U.S. Court of Appeals for the Seventh Circuit
    • U.S. Court of Appeals for the District of Columbia Circuit
    • U.S. District Court for the Western District of Wisconsin
    • U.S. District Court for the Eastern District of Wisconsin


  • American College of Trial Lawyers, Fellow
  • Listed in Chambers USA America's Leading Business Lawyers
  • Listed in Wisconsin and Washington, D.C. Super Lawyers magazine
  • Recipient of the "Richard E. Guggenhime Pro Bono Award," 2006
  • Recipient of the Wisconsin Equal Justice Fund's Howard B. Eisenberg Lifetime Achievement Award, 2010
  • Recognized as an IP Star by Managing IP, 2013
  • William Gorham Rice Civil Libertarian of the Year, 1999

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One East Main Street, Suite 201
Madison, WI 53703-5118
Firm Phone: 608-663-7460

Practice Areas

  • Commercial Litigation (Intellectual Property)
  • Copyright Law
  • Litigation - Intellectual Property
  • Litigation - Patent
  • Patent Law

Lawyer of the Year


  • University of Wisconsin (BA)
  • University of Wisconsin Law School (J.D.)

Bar Admissions

  • State Bar of Wisconsin

Organizations & Affiliations

  • American Intellectual Property Law Association — Member
  • American Bar Association — Member


  • United States District Court