Don H. Marmaduke is a lawyer practicing appeals, intellectual property litigation, antitrust litigation and 4 other areas of law. Don received a B.E. degree from Yale University in 1946, and has been licensed for 75 years. Don practices at Tonkon Torp LLP in Portland, OR.
Don is a Tau Beta Pi mechanical engineer from Yale. He was Co-Editor in Chief of Oregon's first 3-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.
Professional Organizations:
Oregon State Bar
Fellow, American College of Trial Lawyers
Fellow, International Society of Barristers
Advocate, American Board of Trial Advocates
Oregon Association of Defense Counsel
Multnomah Bar Association
Case Studies
AAA Protects Oregon Consumers From Added Taxes
Articles
Pro Bono Takes Center Stage at Prominent Local Firm Retreat
News
Tonkon Torp Wins Top Litigation Honors - Four of Firm's Attorneys Again Identified as Oregon Litigation Stars
Best Lawyers in America® Names 50 Tonkon Torp Attorneys to 2013 List
Tonkon Torp Recognized for Promoting Diversity in Legal Profession
Tonkon Torp Lawyers Offer Intellectual Property Tips to Entrepreneurs
Best Lawyers in America® Names 40 Tonkon Torp Attorneys to 2012 List
Four of Firm's Attorneys Identified as Oregon "Litigation Stars"
Tonkon Torp Named One of America's Leading Litigation Firms and Four of firm's attorneys identified as litigation stars
Best Lawyers in America® Names 37 Tonkon Torp Attorneys
Best Lawyers in America ® 2010 Names 30 Tonkon Torp Attorneys
The Best Lawyers in America ® 2009 Names 25 Tonkon Torp Attorneys
Twelve Tonkon Torp Attorneys Again Earn National Recognition for Excellence in Business Law
Best Lawyers in America ® 2008 Names 22 Tonkon Torp Attorneys
12 Tonkon Torp Attorneys Earn National Recognition for Excellence in Business Law
Tonkon Torp Attorneys Selected for Chambers & Partners USA 2005-2006
1600 Pioneer Tower, 888 S.W. 5th Ave., Ste. 1600Portland, OR 97204-2012U.S.A.
Show on mapBy clicking the Submit button, you agree to the Terms of Use, Supplemental Terms and Privacy Policy. You also consent to be contacted at the phone number you provided, including by autodials, text messages and/or pre-recorded calls, from Lawyers.com and its affiliates and from or on behalf of attorneys you request or contact through this site. Consent is not a condition of purchase.
You should not send any sensitive or confidential information through this site. Emails sent through this site do not create an attorney-client relationship and may not be treated as privileged or confidential. The lawyer or law firm you are contacting is not required to, and may choose not to, accept you as a client. The internet is not necessarily secure and emails sent though this site could be intercepted or read by third parties.
This site is protected by reCAPTCHA. See Google’s Privacy Policy and Terms of Service.
