John Whelan

John Whelan


Chicago, IL

Main: (312) 463-5000 Fax: (312) 463-5001


John’s practice includes the preparation and procurement of patents in matters primarily in the electronics and computer fields. He has a broad technological background including signal processing, internet of things, wireless networking, computer vision, embedded digital systems, and cyber security.

John graduated from the University of Iowa with a degree in Chemical Engineering, specializing in business and physical chemistry. He earned his law degree from the University of Iowa College of law, where he was a writer and contributing editor for the Iowa Law Review. John graduated from Illinois Institute of Technology with a Masters of Electrical and Computer Engineering, where he developed and taught a course on Cybersecurity Law.

Prior to joining Banner Witcoff, John worked for a large general practice law firm, focusing on patent preparation and procurement. He is admitted to practice in the state of Illinois and the U.S. patent and Trademark Office.

  • B.S., Chemical Engineering, 2012, University of Iowa
  • J.D., 2016, University of Iowa
  • M.E.C.E, 2019, Illinois Institute of Technology

Court Admissions

  • Supreme Court of Illinois
  • U.S. Patent and Trademark Office

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