Prof. John F. Duffy

Samuel H. McCoy II Professor of Law, University of Virginia School of Law

John Duffy joined the Law School in 2011 after serving on the faculty at George Washington University Law School since 2003, most recently as Oswald Symister Colclough Research Professor of Law. Duffy teaches torts, administrative law, patent law and international intellectual property law.

In the field of intellectual property, Duffy has been identified as one of the 25 most-influential people in the nation by The American Lawyer and one of the 50 most influential people in the world by the U.K. publication Managing Intellectual Property. He was named a legal “visionary” by the Legal Times in 2009 and has been profiled in BusinessWeek.

After receiving an undergraduate degree in physics, Duffy served as articles editor on the University of Chicago Law Review and was awarded an Olin Fellowship in Law and Economics. Duffy clerked for Judge Stephen Williams on the U.S. Court of Appeals for the D.C. Circuit and for U.S. Supreme Court Justice Antonin Scalia, served as an attorney adviser in the Department of Justice’s Office of Legal Counsel, and practiced law with the Washington, D.C., firm Covington & Burling.

Since entering academia in 1996, Duffy has been on the faculty of the Benjamin N. Cardozo School of Law and the William and Mary School of Law, and has also served as a visiting professor at the University of Chicago. He has published articles in the University of Chicago Law Review, Columbia Law Review, Texas Law Review and Supreme Court Review, and he is the co-author of a casebook on patent law.

  • B.A., Harvard University
  • J.D., University of Chicago

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Publications and Multimedia
Are Patents Under Attack in the Supreme Court? - Event Audio/Video
Fourth Annual Executive Branch Review Conference
May 20, 2016
Who Determines an Agency's Power? - Event Audio/Video
16th Annual Faculty Conference
January 09, 2014
Showcase Panel IV: Textualism and Statutory Interpretation - Event Audio/Video
2013 National Lawyers Convention
November 25, 2013
Intellectual Property, Free Markets and Competition Policy - Event Audio/Video
2013 National Lawyers Convention
November 20, 2013
Patents in the Supreme Court: Bilski v. Kappos - Podcast
Intellectual Proerty Practice Group
July 19, 2010
Administrative Common Law and the Original Meaning of Judicial Review Under the APA
Administrative Law Practice Group Newsletter - Volume 3, Issue 2, Summer 1999
August 01, 1999
Federalism Revived? The Printz and City of Boerne Decisions
Federalism & Separation of Powers Practice Group Newsletter - Volume 2, Issue 1, Spring 1998
May 01, 1998
Blind to Text, Unfaithful to Principle
Federalism & Separation of Powers Practice Group Newsletter - Volume 1, Issue 1, Fall 1996
December 01, 1996