John A. Cullis Photo

John focuses his practice on intellectual property litigation, counseling and procurement. He has first chaired trademark, trade dress, trade secret, copyright and unfair competition matters before numerous U.S. federal courts throughout the country and the USPTO’s Trademark Trial and Appeal Board. In addition, John routinely counsels clients on the clearance, registration, enforcement, licensing and acquisition/disposition of intellectual property rights.


  • University of Windsor Faculty School of Law/ University of Detroit-Mercy School of Law, 2000, J.D.
  • Huron College at University of Western Ontario, 1997, B.A.

  • Illinois
  • Ontario

  • U.S. District Court - Northern District of Illinois
  • U.S. District Court - Northern District of Illinois Trial Bar
  • U.S. Court of Appeals - Seventh Circuit

  • John has been actively involved with the Canada-U.S. Business Council (formerly the Canadian Club of Chicago) since his arrival in Chicago and currently serves as the president of the board of directors.
  • Member, INTA
  • Member, Chicago Bar Association

Awards & Recognition

  • Top 40 Under 40 - Listed in the Law Bulletin Publishing Company’s “40 under 40” feature, 2011
  • WTR 1000 – Recognized as a leading trademark practitioner by The World Trademark Review 1000
  • Selected to the Illinois Super Lawyers list for Intellectual Property Litigation, 2020
  • Selected through peer review for inclusion in The Best Lawyers in America© for Trademark Law, 2020