Margaret Duncan

Title/s:  Adjunct Professor



Margaret Duncan is an Adjunct Professor at Loyola University Chicago School of Law, where she currently teaches Patent Law.

Previously, she practiced at McDermott Will & Emery for 28 years, including as a partner in the Intellectual Property practice group, where she was head of the Chicago IP practice for 12 years. She focused her practice on all aspects of intellectual property law, including patent, trademark, trade secret and copyright protection, litigation and transactions.

Professor Duncan is a member of the Illinois Bar and is admitted to practice in numerous federal district and appellate courts and the U.S. Supreme Court. She has been consistently ranked by Best Lawyers, Chambers USA and World Trademark Review as a leading lawyer in IP law. In 2018, Leading Lawyers magazine listed her in the Top 10 IP attorneys in Illinois.

During law school at Loyola University Chicago School of Law, she won first place in the Giles Sutherland Rich Moot Court Competition, Midwest Region, and first runner-up in the national competition. She also externed for Chief Judge James Benton Parsons in the U.S. District Court for the Northern District of Illinois.

She served as the 2018-19 president of the Richard Linn American Inn of Court and continues to serve on its Executive Committee. She is vice-chair of the Intellectual Property Law Association of Chicago's Amicus Committee and is a member of the Enforcement Committee of the International Trademark Association. She also served on INTA's International Amicus Committee, U.S. Subcomimttee for the past 4 years. She is a founding member of Human Rights Watch's Chicago Committee and is one of its Chairs Emerita.


B.S. Xavier University 1976 - focus on biology, chemistry

B.S. Indiana University 1976 - focus on biology, chemistry; clinical laboratory rotation at I.U. Medical Center, Indianapolis, IN

J.D. Loyola University Chicago School of Law - IP Moot Court team

Program Areas

Patent Law

Intellectual Property Law