Jon O. Nelson

Jon O. Nelson

Retired Shareholder

Chicago, IL

Main: 312.463.5000 Fax: 312.463.5001


Jon practiced in the Chicago office of Banner Witcoff for more than 35 years. Throughout that time he was involved in the procurement of patents, trademarks and copyrights, advisory counseling, opinion preparation, contract negotiation and preparation, and extensive litigation related to patents, trademarks and copyrights. Jon was known for his innovative approach to intellectual property problems.

He served as lead trial counsel in jury and bench trials in a number of cases relating to such diverse matters as computer chips, biotechnology, and automotive repair equipment. He presented oral arguments before the United States Patent and Trademark Office, and before Appellate and District Courts throughout the United States. Jon assisted clients with respect to foreign patent litigation and has extensive experience before the International Trade Commission. He spoke at numerous conferences and seminars.

Jon earned a Bachelor of Science in Metallurgical Engineering from Purdue University, a Masters of Science in Metallurgical Engineering from the University of Illinois and a Juris Doctor degree from the University of Illinois.

  • Purdue University
    1961, B.S., Chemical Engineering
  • University of Illinois
    1963, M.S., Chemical Engineering
  • University of Illinois College of Law
    1966, J.D.

Bar Admissions

  • 1966, Illinois
  • 1985, Massachusetts

Court Admissions

  • Supreme Court of Illinois
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Appeals for the Seventh Circuit
  • U.S. Court of Federal Claims
  • U.S. District Court for the Northern District of Illinois
  • U.S. Supreme Court

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