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Shannon concentrates his practice in the areas of product liability, toxic tort, intellectual property, and general commercial litigation.

He advocates for clients of all sizes, from individuals to corporations, including some of the world’s leading manufacturers of specialty chemicals, petrochemicals, automobile parts, and industrial and consumer products, advising them on negotiations, discovery issues and litigation strategies.

Shannon manages day-to-day litigation matters in toxic exposure cases, including developing defense strategies and preparing cases for trial. He specializes in defending asbestos exposure claims against premises owners and solvent exposure claims against specialty chemicals and petrochemical manufacturers. Shannon has appeared in cases pending in state and federal jurisdictions throughout Missouri and Illinois.

In his intellectual property practice, Shannon advises clients on issues ranging from assisting in protecting and licensing their patented technologies and trademarks, to performing freedom to operate and patentability searches. He also resolves complex intellectual property disputes involving patents, trade secrets and non-compete agreements.

Throughout his career, Shannon has handled several pro bono matters. He is a member of the Board of Directors for Room at the Inn, an organization which provides immediate, temporary shelter to homeless women and families in the St. Louis region.

Prior to joining the firm, Shannon spent more than 10 years in the automotive industry working in various capacities from engineering to legal activities coordination for industry leaders including Moog Automotive, Electronic Data Systems, Saturn Corporation, General Motors and Nissan Extended Services North America. He also taught undergraduate courses in business management for the University of Phoenix, and was an entrepreneur who owned and operated an automotive aftermarket accessories company.

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  • Bar Association of Metropolitan St. Louis, Volunteer Lawyer of the Month
  • St. Louis Small Business Monthly, 2016 Top Small Business Lawyers
  • Legal Services of Eastern Missouri, "For the Common Good" John R. Essner Young Lawyer of the Year Award


  • J.D., University of Illinois College of Law
    • cum laude
    • Intellectual Property Legal Society, President
  • M.S., Kettering University
    • Operations Management
  • B.S., Southern Illinois University
    • magna cum laude
    • Advanced Technical Studies in Automotive Technology
    • Automotive Technology Organization, Vice President


  • Missouri
  • U.S. District Court, Eastern District of Missouri
  • Illinois
  • U.S. District Court, Western District of Missouri
  • U.S. District Court, Southern District of Illinois

Professional Associations and Memberships

  • American Bar Association
  • The Bar Association of Metropolitan St. Louis, Pro Bono Committee Member
  • Illinois State Bar Association
  • The Missouri Bar
  • Room at the Inn, Board of Directors