For over 40 years, John has practiced primarily in the areas of intellectual property litigation and trademark prosecution.
Since joining the firm in 1986, he has been involved in patent litigation, patent interferences, International Trade Commission proceedings, trademark and trade dress litigation, trademark oppositions and cancellation proceedings, and copyright litigation. He also has experience in licensing matters and IP counseling.
In addition, John’s legal expertise also includes IP portfolio strategy and counseling, due diligence studies and opinions, audits, trade secret advice, alternative dispute resolution, nondisclosure agreements, technology transfer, consulting, employment, and community interest agreements.
Credentials
Bar Admissions
- U.S. Court of Appeals for the Federal Circuit
- U.S. Court of Appeals for the First Circuit
- U.S. District Court, District of Massachusetts
- U.S. Supreme Court
- Massachusetts
- New Hampshire
- New York
Education
- B.A. in Mathematics, cum laude, Williams College
- J.D., Fordham University School of Law
Practice Areas
- Agreements
- Copyrights
- Counseling
- IP Litigation
- Licensing
- Trade Secrets
- Trademark Opposition & Cancellation Proceedings
- Trademarks
Speaking Engagements
- "Protecting Brands for Virtual Currencies," Hamilton Brook Smith Reynolds Webcast, June 21, 2018
- "Protecting Your Brewery’s Brands with Trademarks," Hamilton Brook Smith Reynolds Webcast, April 27, 2018
- Blockchain and Cryptocurrency Forum, Boston Bar Association, March 28, 2018
- “Using Coexistence Agreements to Secure and Confirm Trademark Rights,” Hamilton Brook Smith Reynolds Webcast, September 14, 2016
Industry Acknowledgments
- Recognized in The Best Lawyers in America® 2025 for Trademark Law expertise
- Recognized in 2024 as a “Global Leader in Private Practice” in the sixth edition of World Trademark Review (WTR) Global Leaders.
- World Trademark Review 1000 2024 ranks John in the Gold category for trademark prosecution and strategy and in the Silver category for handling trademark enforcement and litigation matters.
- Recognized in The Best Lawyers in America® 2024 for Trademark Law expertise
- World Trademark Review 1000 2023 ranks John in the Gold category for trademark prosecution and strategy and in the Silver category for handling trademark enforcement and litigation matters.
- Recognized in The Best Lawyers in America® 2023 for Trademark Law
- For the fifth consecutive year, World Trademark Review 1000 2022 ranks John in the Gold category for trademark prosecution and strategy
- Recognized in The Best Lawyers in America® 2022 for Trademark Law
- World Trademark Review 1000 2021 Recognizes John in Gold and Silver Categories
- Recognized as a Global Leader by World Trademark Review for 2020
- Recognized in The Best Lawyers in America® 2021 for Trademark Law
- John DuPré has been selected by World Trademark Review 2020 in the Gold category for trademark prosecution and strategy
- Recognized in The Best Lawyers in America® 2020 for Trademark Law
- Recognized by World Trademark Review 1000 2019 in the gold category for trademark prosecution and strategy
- Recognized in The Best Lawyers in America® 2019 for Trademark Law
- John DuPré is Recognized by World Trademark Review 1000 at the Gold Level for 2018 for trademark prosecution and strategy
- Recognized in The Best Lawyers in America® 2018for Trademark Law
- World Trademark Review 1000 2017 Individually Honors John DuPré in Silver Category for Enforcement, Litigation, and Prosecution and Strategy Matters
- Recognized in The Best Lawyers in America® 2017 for Trademark Law
- World Trademark Review 1000 2016 Brands John DuPré as "Invaluable Counsel," Noting Skills in Enforcement and Litigation, as well as Prosecution and Strategy
- World Trademark Review 1000 2015 Hails John DuPré as "Exceptional"
Professional Associations
- American Bar Association
- Boston Patent Law Association, Past-President; Past Board of Governors
- International Trademark Association
- New Hampshire Bar Association
- The New England Center for Children, Inc., Member Board of Advisors