As a member of Armstrong Teasdale’s Intellectual Property practice, Mike Munsell provides tailored and focused representation to emerging companies and mature businesses. He counsels clients on patent acquisition, licensing and enforcement, product clearance, freedom-to-operate, validity, due diligence and general business matters.

Practicing before the U.S. Patent and Trademark Office since 1997, Mike actively engages in the preparation, prosecution and enforcement of U.S., PCT and foreign patents. Mike has patent experience in technologies including aerospace, HVAC systems, semiconductor wafer manufacturing, solar devices, batteries, bioenergy production, agricultural equipment and software, electric motors and controls, mining systems, medical devices including surgical instruments, orthopedic implants and nuclear imaging products.

With a range of experience in patent and trademark enforcement matters, Mike regularly counsels clients regarding enforcement options in the U.S. and in foreign jurisdictions. He has significant experience in patent reexaminations and in managing concurrent proceedings in U.S. courts and the Patent Office.

Mike also works closely with inventors and businesses in patent portfolio strategy and development, licensing and monetization. In general business matters, he counsels clients regarding due diligence, mergers and acquisitions, and joint development agreements.


  • University of Missouri School of Law  (J.D., 1997)
    • Missouri Law Review (1997)
    • Missouri Journal of Dispute Resolution (1997)
  • Missouri University of Science and Technology  (B.S.M.E., 1993)
    • Mechanical Engineering


  • Missouri, 1997
  • U.S. Patent and Trademark Office

Professional Activities

  • The Missouri Bar

Charitable and Civic Involvement

  • Alpha Iota Educational Foundation (President)


  • IAM Patent 1000: The World's Leading Patent Professionals (2021-present)
  • The Best Lawyers in America®, Patent Law (2017-present)
  • Best Patent Attorneys, St. Louis Small Business Monthly (2017)
  • Chambers USA: America's Leading Lawyers for Business for Intellectual Property (2012-2017)
Contact Us
  • Worldwide
  • Boston, MA
  • Chicago, IL
  • Denver, CO
  • Dublin, Ireland
  • Edwardsville, IL
  • Jefferson City, MO
  • Kansas City, MO
  • Las Vegas, NV
  • 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
800 Boylston St.
30th Floor
Boston, MA 02199
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Boston, Massachusetts
Chicago, IL
100 North Riverside Plaza
Suite 1500
Chicago, IL 60606-1520
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Chicago, Illinois
Denver, CO
4643 S. Ulster St.
Suite 800
Denver, CO 80237
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Denver, Colorado
Dublin, Ireland
Fitzwilliam Hall, Fitzwilliam Place
Dublin 2, Ireland
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Edwardsville, IL
115 N. Second St.
Edwardsville, IL 62025
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Edwardsville, Illinois
Jefferson City, MO
101 E. High St.
First Floor
Jefferson City, MO 65101
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Jefferson City, Missouri
Kansas City, MO
2345 Grand Blvd.
Suite 1500
Kansas City, MO 64108
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Kansas City, Missouri
Las Vegas, NV
7160 Rafael Rivera Way
Suite 320
Las Vegas, NV 89113
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Las Vegas, Nevada
London, England
Royal College of Surgeons of England
38-43 Lincoln’s Inn Fields
London, WC2A 3PE
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Miami, FL
355 Alhambra Circle
Suite 1200
Coral Gables, FL 33134
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New York, NY
7 Times Square, 44th Floor
New York, NY 10036
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Orange County, CA
19800 MacArthur Boulevard
Suite 300
Irvine, CA 92612
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Philadelphia, PA
2005 Market Street
29th Floor, One Commerce Square
Philadelphia, PA 19103
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Philadelphia, Pennsylvania
Princeton, NJ
100 Overlook Center
Second Floor
Princeton, NJ 08540
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Princeton, New Jersey
Salt Lake City, UT
222 South Main St.
Suite 1830
Salt Lake City, UT 84101
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St. Louis, MO
7700 Forsyth Blvd.
Suite 1800
St. Louis, MO 63105
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Washington, D.C.
1717 Pennsylvania Avenue NW
Suite 400
Washington, DC 20006
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Wilmington, DE
1007 North Market Street
Wilmington, DE 19801
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Wilmington, Delaware