• vcard
D 314.622.6632
F 314.667.3841
  • Education
    • J.D., Washington University in St. Louis, 2008
    • B.S., Massachusetts Institute of Technology, 2001, Nuclear Engineering
  • Bar Jurisdictions
    • Missouri, 2009
    • Admitted to practice before the United States Patent and Trademark Office
Elton Dean’s natural curiosity and desire to figure out how things work make him invaluable to clients who develop inventions. His thirst for knowledge led him to earn a degree in Nuclear Engineering from the Massachusetts Institute of Technology and then on to law school. As an intellectual property attorney at Polsinelli, Elton enjoys the opportunity to work with a variety of clients ranging from garage inventors and technology startups to universities and Fortune 500 companies.  Elton’s practice involves drafting, prosecuting, and evaluating patents in a wide range of technical fields, including:
  • Medical devices and medical imaging systems
  • Mechanical devices
  • Consumer goods
  • Industrial waste management systems
  • Power generation systems 
  • Software
  • Semiconductor materials and crystal growth
  • Electrical circuits and systems
  • Nanotechnology 
  • Microfluidics

Elton helps clients assess the risks of patent infringement and provides invaluable technical insight to investigate and prepare legal opinions regarding a client’s freedom to operate in crowded technology areas. In addition, he and his colleagues develop effective solutions to address the risks, including responding to demand letters, designing around patents, assessing the validity of patents, and obtaining patent licenses.

In addition to patent prosecution, Elton practices in a variety of other intellectual property areas, including trademark prosecution, copyrights, licensing, litigation support, and transactional due diligence. He also provides guidance on overall intellectual property strategies. In his trademark practice, Elton assists clients with trademark searches and clearance decisions as well as preparing trademark applications.



  • Prepared and managed extensive portfolios of U.S. and International patent applications for diverse intravascular medical devices.
  • Performed due diligence reviews and prepared landscape opinions for the acquisition of a large multi-discipline patent portfolio.
  • Worked with small startups to prepare patent applications or patentability opinions that were used to secure additional investor funding.
  • Managing the patent portfolio for a client with more than 30 issued patents and over 40 pending patent applications.
text icon Publications & Presentations
Polsinelli on Drones & Advanced Robotics Blog
March 24, 2017
text icon Publications & Presentations
What Every Engineer Should Know About Patent Law
Annual National Society of Black Engineers Convention
Co-presenter with Robert Enyard on Panel for Round Table discussion.
March 26, 2011
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