Zach Wiersma is an associate in the firm’s Intellectual Property practice group. He has extensive experience conducting patentability and marketability research and takes a comprehensive approach to analyzing patent protection. He manages applications throughout the process, working closely with the U.S. Patent and Trademark Office.

Zach has hands-on research experience in numerous disciplines, including analytical chemistry, biochemistry, optical engineering, plasmachemical reactions, photochemical reactions and green energy. His background in chemistry and physics, paired with experience in the pharmaceutical industry, lends well to his ability to deconstruct complex concepts, especially in the medical field. He also has experience in the higher education industry, recommending strategic and tactical actions for technology transfer.

Zach has drafted and prosecuted patent applications for a wide variety of technologies and industries, including pharmaceuticals, medical devices, diagnostic devices, agrochemicals, materials chemistry, polymers, semiconductors, catalysis, batteries, combustion and electrochemistry.


  • Mitchell Hamline School of Law  (J.D., summa cum laude, 2022)
    • USPTO Patent Drafting Competition
  • University of Illinois at Urbana-Champaign  (Ph.D., 2018)
    • Chemistry
    • Certificate in Technology Commercialization
  • Rose-Hulman Institute of Technology  (B.S., 2013)
    • Chemistry and Physics


  • U.S. Patent and Trademark Office
  • Missouri

Professional Activities

  • American Chemical Society, Chemistry and Law Division (Member)


Zach was a patent agent at Armstrong Teasdale before becoming an associate. Prior to joining the firm, Zach was a business analyst intern for a major pharmaceutical company.

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
abstract image of world map
Boston, MA
800 Boylston St.
30th Floor
Boston, MA 02199
Google Maps
Boston, Massachusetts
Chicago, IL
100 North Riverside Plaza
Suite 1500
Chicago, IL 60606-1520
Google Maps
Chicago, Illinois
Denver, CO
4643 S. Ulster St.
Suite 800
Denver, CO 80237
Google Maps
Denver, Colorado
Dublin, Ireland
Fitzwilliam Hall, Fitzwilliam Place
Dublin 2, Ireland
Google Maps
Edwardsville, IL
115 N. Second St.
Edwardsville, IL 62025
Google Maps
Edwardsville, Illinois
Jefferson City, MO
101 E. High St.
First Floor
Jefferson City, MO 65101
Google Maps
Jefferson City, Missouri
Kansas City, MO
2345 Grand Blvd.
Suite 1500
Kansas City, MO 64108
Google Maps
Kansas City, Missouri
Las Vegas, NV
7160 Rafael Rivera Way
Suite 320
Las Vegas, NV 89113
Google Maps
Las Vegas, Nevada
London, England
Royal College of Surgeons of England
38-43 Lincoln’s Inn Fields
London, WC2A 3PE
Google Maps
Miami, FL
355 Alhambra Circle
Suite 1200
Coral Gables, FL 33134
Google Maps
Photo of Miami, Florida
New York, NY
7 Times Square, 44th Floor
New York, NY 10036
Google Maps
New York City skyline
Orange County, CA
19800 MacArthur Boulevard
Suite 300
Irvine, CA 92612
Google Maps
Philadelphia, PA
2005 Market Street
29th Floor, One Commerce Square
Philadelphia, PA 19103
Google Maps
Philadelphia, Pennsylvania
Princeton, NJ
100 Overlook Center
Second Floor
Princeton, NJ 08540
Google Maps
Princeton, New Jersey
Salt Lake City, UT
222 South Main St.
Suite 1830
Salt Lake City, UT 84101
Google Maps
Salt Lake City, Utah
St. Louis, MO
7700 Forsyth Blvd.
Suite 1800
St. Louis, MO 63105
Google Maps
St. Louis, Missouri
Washington, D.C.
1717 Pennsylvania Avenue NW
Suite 400
Washington, DC 20006
Google Maps
Photo of Washington, D.C. with the Capitol in the foreground and Washington Monument in the background.
Wilmington, DE
1007 North Market Street
Wilmington, DE 19801
Google Maps
Wilmington, Delaware