William  M.  Johnson


William focuses his practice on intellectual property law, specifically patent preparation and prosecution. He assists clients with issues including patent infringement, validity, freedom-to-operate, and patentability studies. His experience includes handing patent matters for clients involving various technologies in the electrical, mechanical, materials, and optical arts, including optical elements and devices, aeronautics, signal processing, and semiconductor electronics. Before joining Dinsmore, William spent two years as an in-house patent attorney at NASA’s Glenn Research Center, which he joined after practicing at a large, national firm.

He graduated with honors from the University of Chicago Law School. Prior to law school, he was a patent examiner at the United States Patent and Trademark Office. William also has a B.S. from Michigan State University with high honors


  • University of Chicago Law School  (J.D., 2016)
  • Michigan State University  (B.S., with high honors, 2011)
    • Physics

Bar Admissions

  • Michigan
  • U.S. Patent & Trademark Office