Don H. Marmaduke (Inactive)

Tonkon Torp LLP
1600 Pioneer Tower
888 SW Fifth Avenue
Portland, Oregon 97204

PHONE: 503.802.2003
EMAIL: don.marmaduke@tonkon.com
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Don co-founded the firm in 1974. Prior to his retirement, he was an active senior trial partner who specialized in cases before state and federal courts in Oregon and elsewhere. His trial experience, more than 250 cases tried mostly to juries, includes a full range of civil cases. He was a Fellow of the American College of Trial Lawyers and the International Society of Barristers. Don was acknowledged as a "Senior Statesman" by America's Leading Business Lawyers – Chambers USA 2005-2006 and was named a "Litigation Star" in the 2013 edition of Benchmark Litigation.
 

Don is a Tau Beta Pi mechanical engineer from Yale. He was Co-Editor in Chief of Oregon’s first three-volume work on Civil Pleading and Practice. He taught Remedies as an adjunct instructor at Northwestern School of Law at Lewis and Clark College. His technical background is valuable in intellectual property cases involving electronics, optics, mechanics, communications technologies, computer applications and the like. His cases often involve complex technical or business issues, professional malpractice, shareholder or employment disputes, contract controversies, and business tort actions.
 

The breadth of Don’s practice is suggested by his handling of the landmark medical antitrust case of Patrick v. Burget, in which the U.S. Supreme Court unanimously upheld his jury verdict, and by his 1965 trial victory desegregating the Neshoba County courthouse in Philadelphia, Mississippi.
 

Don has served as President of the Multnomah Bar Association and as an elected Delegate to the American Bar Association’s House of Delegates.
 
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Don co-founded the firm in 1974. Prior to his retirement, he was an active senior trial partner who specialized in cases before state and federal courts in Oregon and elsewhere. His trial experience, more than 250 cases tried mostly to juries, includes a full range of civil cases. He was a Fellow of the American College of Trial Lawyers and the International Society of Barristers. Don was acknowledged as a "Senior Statesman" by America's Leading Business Lawyers – Chambers USA 2005-2006 and was named a "Litigation Star" in the 2013 edition of Benchmark Litigation.
 

Don is a Tau Beta Pi mechanical engineer from Yale. He was Co-Editor in Chief of Oregon’s first three-volume work on Civil Pleading and Practice. He taught Remedies as an adjunct instructor at Northwestern School of Law at Lewis and Clark College. His technical background is valuable in intellectual property cases involving electronics, optics, mechanics, communications technologies, computer applications and the like. His cases often involve complex technical or business issues, professional malpractice, shareholder or employment disputes, contract controversies, and business tort actions.
 

The breadth of Don’s practice is suggested by his handling of the landmark medical antitrust case of Patrick v. Burget, in which the U.S. Supreme Court unanimously upheld his jury verdict, and by his 1965 trial victory desegregating the Neshoba County courthouse in Philadelphia, Mississippi.
 

Don has served as President of the Multnomah Bar Association and as an elected Delegate to the American Bar Association’s House of Delegates.
 
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Former Board Member:

  • Downtown YMCA
  • Lake Oswego School Board
  • Lawyers' Committee, ACLU in Oregon
  • Metropolitan Public Defender
  • Multnomah Bar Association
  • Oregon Association of Defense Counsel
  • Oregon Chapter, American Civil Liberties Union
  • Portland Center for the Visual Arts
  • State Public Defender Committee
  • Tri-County Community Council
  • United Way, Columbia-Willamette

Pro Bono Activities:

  • Partner, Oregon's first public interest law firm, 3 1/2 years
  • Federal Court Criminal Defense Panel (pre-Public Defender)
  • U.S. Department of Justice Hearings Officer, Conscientious Objectors (Viet Nam)
  • Vice Chair, Public Advocate, for City Measure 51 (created citizen review board for Portland police actions)
  • Service as prosecuting attorney for Judicial Conduct (Washington) in judicial disciplinary actions the Supreme Courts of Oregon and Washington
  • Volunteer trial counsel for civil rights activists in Mississippi, 1965