Dan Fitzgerald is a partner in the firm's Intellectual Property practice where he chairs the electrical and computer science group.  Dan has developed an extensive intellectual property law practice with several Fortune 500 corporations, handling transactions, product development, patent prosecution, litigation strategy and inter partes review strategy.  In his practice, Dan regularly counsels clients and supervises due diligence reviews on proposed transactions, and negotiates and drafts agreements for acquisitions, licenses and technology transfers.  He also develops and implements strategies to merge and integrate acquired technology for synergistic results and cost efficiencies.

Registered to practice before the U.S. Patent and Trademark Office, Dan performs product clearance assessments and guides product development to minimize intellectual property risks in a variety of industries, including database management systems, cloud computing, online advertising systems, mobile device technology, payment processing and fraud detection systems, financial and insurance management systems, medical diagnostic devices, packaging products and machinery, control systems, railroad equipment and other business-related systems.  He also develops programs to map relevant patent activities, and counsels clients and provides opinions in support of product launch and patent litigation.

An experienced IP practitioner, Dan also advises his clients on the strategic aspects associated with enforcing or defending patent rights. Over the years, he has been involved in a number of patent infringement controversies involving the enforcement of patent rights, the defense of product-producing clients and challenging the validity of patents.

Additionally, Dan manages patent estates involving several thousand patent and trademark matters, including supervising and performing all phases of patent and trademark prosecution in the United States and throughout the world. He also develops and implements programs to monitor intellectual property activities by competitors, and facilitates and manages internal innovation efforts.


  • University of Notre Dame Law School  (J.D., cum laude, 1993)
  • University of Notre Dame  (B.S., 1989)


  • Missouri, 1994
  • Illinois, 1993
  • U.S. Patent and Trademark Office, 1995

Professional Activities

  • The Missouri Bar 
  • Illinois State Bar Association 
  • National Lawyers Association
  • Madison County Bar Association
  • Alton-Wood River-Jersey Bar Association


  • The Best Lawyers in America®; Patent Law (2013-present)
  • IAM Patent 1000: The World's Leading Patent Professionals (2021-present)
  • Best Patent Attorneys, St. Louis Small Business Monthly (2018)


Prior to attending law school, Dan worked as a project engineer in the metal refining industry.

Contact Us
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1007 North Market Street
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