Dan R. Gresham



  • Georgia State University College of Law,


  • Georgia Institute of Technology,

    B.S. Electrical Engineering

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bar admissions

  • Georgia
  • United States Patent and Trademark Office (USPTO)
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court admissions

  • U.S. Supreme Court
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court for the Northern District of Georgia
  • Supreme Court of Georgia
  • Court of Appeals of Georgia

Dan R. Gresham has more than 30 years of litigation experience involving all facets of intellectual property law, including patents, trademarks, copyrights, trade secrets, unfair competition, covenants not to compete, confidentiality agreements, and related issues. He is also experienced in negotiating and drafting contracts and licensing agreements addressing intellectual property issues.

Dan graduated from Georgia Tech (B.E.E., with honors) in 1977. For the next eight years, he gained practical experience working as an electrical engineer before going to law school. In 1988, he received his law degree from Georgia State University College of Law (J.D., summa cum laude), where he was first in his class.

After graduating law school, Dan clerked for the Honorable G. Ernest Tidwell in the U.S. District Court for the Northern District of Georgia, before entering private practice in the litigation department at Troutman Sanders. Upon deciding to concentrate his practice on intellectual property, he joined Thomas | Horstemeyer (then known as Thomas, Kayden, Horstemeyer & Risley) in 1997 and became a partner in 2001.

In more than 30 years of practice, Dan has represented a wide range of clients in litigation before numerous courts and administrative tribunals, including the U.S. Court of Appeals for the Federal Circuit. He has also been admitted to practice before the Supreme Court of the United States. In addition to representing clients, he also taught Intellectual Property Law as an adjunct professor at John Marshall Law School in Atlanta, Georgia.

professional activities

  • American Bar Association (ABA)
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