Thomas R. Burns focuses his practice on patent litigation for the biotechnology and pharmaceutical industries. Thomas has extensive experience with Hatch-Waxman patent litigation, experience with biologics litigation, and experience with inter partes review petitions before the U.S. Patent & Trademark Office.

Representative Experience

Thomas has over ten years of experience in all aspects of patent litigation and has conducted the direct examination of witnesses at trial. He has handled numerous matters involving a wide variety of pharmaceutical and biological technologies, such as:

  • Single molecules
  • Formulations
  • Pharmacokinetics
  • Solid state chemistry
  • Methods of treatment
  • Inhalation aerosols
  • Recombinant DNA technology

Background and Credentials

Prior to joining Marshall Gerstein, Thomas worked as an attorney at a law firm in New York and a law firm in Chicago. Both of these firms focused on intellectual property law.

During law school at the Boston University School of Law, Thomas was an editor of the Boston University Law Review. He received his B.S., with distinction, in genetics and history from Iowa State University.


  • Boston University School of Law (J.D.)
  • Iowa State University (B.S., with distinction)
    • Genetics
    • History

Bar Admissions

  • U.S. Patent and Trademark Office
  • Illinois
  • New York
  • U.S. District Court, Northern District of Illinois
  • U.S. Court of Appeals, Federal Circuit


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