McDonnell Boehnen Hulbert & Berghoff LLP

13 Best Lawyers awards

Awarded Practice Areas

Patent Law

Biography

Dunstan H. Barnes is a Partner at McAndrews and practices in all areas of intellectual property law with emphasis on protecting and analyzing design rights. His work in that area includes drafting and prosecuting design patent applications and conducting opinion work and due diligence investigations. In addition, Dunstan has considerable experience drafting and prosecuting utility patent applications and trademark applications across a range of technological fields and industries.

As a practitioner, Dunstan is an effective communicator and an outstanding writer. He is particularly skilled at communicating complex, abstract technical concepts clearly and compellingly. He is a skilled intellectual property advocate and adviser who helps his clients protect their innovations, particularly new designs, in U.S. and global marketplaces. He helps his clients acquire and protect their IP rights, as well as navigate the world of existing rights. In 2021, Dunstan was honored as a 40 Under Forty attorney in Illinois. In recommending him for the honor, a senior IP counsel at a major international pharmaceutical company said of Dunstan, “I consider him to be one of the top 10 design patent attorneys in the United States, period.”

Dunstan is the current Chair of the American Bar Association (ABA) Design Rights Committee and Vice Chair of the American Intellectual Property Law Association (AIPLA) Industrial Designs Committee. He has been an invited speaker at conferences including AIPPI World Congress, AIPLA Annual Meeting, ABA-IPL Spring Meeting, and USPTO Design Day.

In his spare time, Dunstan enjoys football (soccer) in pretty much any weather, bass guitar, poker, and keeping up with his ever-energetic young daughter.

McDonnell Boehnen Hulbert & Berghoff LLP

13 Best Lawyers awards

Overview

  • Chicago-Kent College of Law at IIT, J.D., magna cum laude, Order of the Coif, graduated 2013
  • University of Cambridge, Ph.D., Materials Science & Metallurgy (Biomaterials), graduated 2010
  • University of Oxford, M.Eng., Materials Science & Metallurgy, graduated 2006
  • Chicago-Kent College of Law at IIT, J.D., magna cum laude, Order of the Coif, graduated 2013
  • University of Cambridge, Ph.D., Materials Science & Metallurgy (Biomaterials), graduated 2010
  • University of Oxford, M.Eng., Materials Science & Metallurgy, graduated 2006

Client Testimonials

Awards & Focus

Recognized in The Best Lawyers in America® 2026 for work in:
  • Patent Law
Recognized in Best Lawyers: Ones to Watch® in America from 2022-2025 for work in:
  • Intellectual Property Law - 2025
  • Intellectual Property Law - 2024
  • Intellectual Property Law - 2023
  • Intellectual Property Law - 2022
Additional Areas of Practice:
  • Intellectual Property Law

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