Gregory Johnson is a registered patent attorney with more than 15 years of experience. Focusing his practice on patent prosecution, Greg helps startups, Fortune 100 companies and inventors protect their innovations and most critical assets.

A former software developer, Greg leverages his experience to best serve his clients and understands the intricacies involved in software and computer technology. Having worked with companies in the tech, electrical and software industries for over 15 years, Greg primarily represents clients in preparation and prosecution of patent and design applications, infringement analysis, freedom-to-operate analysis, reexamination proceedings, litigation support and validity reviews.

Throughout his career, Greg has prepared and prosecuted patent applications for businesses of all sizes and handled matters in numerous areas, including ride-sharing services, security surveillance systems, wearable electronic devices, streaming, graphics processing, authentication, computer memory, database management systems, encryption, gaming machines, graphical user interfaces, medical devices, wireless and networking communications and protocols, handheld computing devices, and operating systems including iOS, Windows, Chrome OS, Android, Linux and webOS.

Greg takes a forward-thinking approach with his clients. While drafting and prosecuting patent applications, he aims to protect the current implementation of the invention as well as future iterations.


Before joining Armstrong Teasdale, Greg worked in private practice for a number of law firms in the Denver area. Prior to his career as a patent attorney, he worked as a software developer. 


  • University of the Pacific, McGeorge School of Law  (J.D., 2006)
  • Brigham Young University  (B.S., 2003)
    • Computer Science


  • Colorado
  • California
  • U.S. Patent and Trademark Office

Professional Activities

  • American Bar Association
  • Colorado Bar Association
  • California Bar Association
  • Denver Bar Association
Contact Us
  • Worldwide
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  • Denver, CO
  • Dublin, Ireland
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  • Jefferson City, MO
  • Kansas City, MO
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  • London, England
  • Miami, FL
  • New York, NY
  • Orange County, CA
  • Philadelphia, PA
  • Princeton, NJ
  • Salt Lake City, UT
  • St. Louis, MO
  • Washington, D.C.
  • Wilmington, DE
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Boston, MA 02199
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Kansas City, MO
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Royal College of Surgeons of England
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Princeton, NJ
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St. Louis, MO
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Wilmington, DE
1007 North Market Street
Wilmington, DE 19801
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Wilmington, Delaware