A member of Armstrong Teasdale’s Intellectual Property practice, Bob Reeser guides inventors, startups and a wide array of companies in leveraging their technology into white spaces.

Registered to practice before the U.S. Patent and Trademark Office (PTO), Bob dedicates the majority of his time in all aspects of intellectual property law. He frequently prepares patent applications—most often related to motors, aircraft engines, gaming devices and electromechanical equipment. When counseling clients on patentability opinions, infringement issues and due diligence, he provides a crisp, experienced analysis of the relationship between inventive concepts and the evolving patent law.

In litigious situations, Bob performs enforcement strategies, prepares cease and desist letters, negotiates settlement agreements and handles patent reexaminations and interference proceedings. He drafts extensive responses to PTO actions and PTO appeals briefs, handles evidentiary requests for copyright infringement cases, and answers oppositions and interrogatories in trademark prosecution and infringement matters.

The balance of Bob’s practice revolves around strategic sustainability planning and the evaluation of prospective energy legislation. He assists clients with future energy initiatives such as electric cars, solar cells and wind turbine installation or farms. As regulatory changes accelerate, he performs state-of-the-art searches and due diligence analysis, identifies white space, provides clearance opinions, facilitates power-sharing or power transfer agreements, interacts with public utility companies and identifies tax incentives.


  • Saint Louis University School of Law  (J.D., cum laude, 1999)
  • Webster University  (M.A., 1990)
  • Parks College, Saint Louis University  (B.S., 1986)


  • Missouri, 1999
  • U.S. Patent and Trademark Office

Professional Activities

  • The Missouri Bar 
  • American Intellectual Property Law Association 
  • Belleville Area College and SIU-Carbondale (Adjunct Professor, 1993-1998) 
  • Southwestern Illinois College (SWIC) (Adjunct Professor, 2000-Present)

Charitable and Civic Involvement

  • American Red Cross (Volunteer) 
  • National Eagle Scout Association


Prior to joining Armstrong Teasdale, Bob spent five years as a training and safety coordinator and as a mechanical engineer at Illinois Power Co. Prior to that, he served for five years in the U.S. Air Force, where he was selected from among 2,500 candidates as the 1990 Military Airlift Command Officer of the Year.

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