Gateway Venture Mentoring Service

Dennis Donahue

“People need an attorney who will truly get to know them and be as passionate about moving their business forward as they are.” – Dennis Donahue
Dennis Donahue is an experienced, highly effective intellectual property attorney, manager, and business advisor, practicing in all areas of IP law, both in a corporate law department and law firms.
Dennis works closely with his clients to help them prioritize their intellectual property (IP) needs while reducing their IP risks. He counsels clients on business strategies in the protection and enforcement of all IP matters.
Patents, Trademarks, Copyrights, Trade Secrets

  • Searches & Legal Opinions on IP Rights
  • IP Development, Licensing & Sales Agreements
  • Portfolio Management & Due Diligence Evaluations
  • Software & e-Commerce Contracts
  • IP & Export Control Compliance Programs

Decades of Experience Dennis started his career with McDonnell Douglas in 1989 as an engineer in Research & Development and moved onto production aircraft programs. He continued at McDonnell Douglas in Litigation Support on the T-45 Goshawk while attending law school and then entered McDonnell Douglas’ Law Department as an attorney in the Patent Law Group. After the merger with Boeing, Dennis took on a business role as a Licensing Portfolio & Marketing Manager and then entered private practice in 1999.
In addition to serving his clients, Dennis had been the Risk Management Partner for Intellectual Property at a large firm and became the Co-Chair of the Intellectual Property Department when the firm grew through a merger to become an AmLaw 100 firm with nearly 700 attorneys. In 2009, Dennis founded Dennis Donahue & Associates where he focused his practice on entrepreneurial clients, including clients that Dennis had worked with since the first year that he ventured out into private practice! In 2011, Dennis teamed with Linda Lewis to form CreatiVenture Law, serving a broader range of clients in all industries & fields of technology.
Dennis has also served as an Adjunct Professor at St. Louis University School of Law, where he taught a self-created class entitled “Anatomy of a Patent.” Dennis taught students how to interpret claims using the prosecution histories of patents and prior art references, as well as how to draft a patent application.


  • J.D. – St. Louis University School of Law, 1996.
  • Masters of Eng. – Rensselaer Polytechnic Institute, 1988.
  • B.S. – Rensselaer Polytechnic Institute, 1987.


  • Missouri, 1996.
  • United States Patent & Trademark Office, 1999.
  • U.S. District Court – Eastern District of Missouri, 2001.

Technology Areas

  • Automotive/Aerospace Assemblies
  • Business Methods
  • Building/Construction Technologies
  • Chemical/BioChemical (Linda)
  • Communications
  • Computer Software/Methods (Dennis)
  • Consumer Products
  • Electronics/Control Systems (Dennis)
  • Electro-Mechanical Devices
  • Games (Board, Card, Electronic)
  • Internet Technologies (Dennis)
  • Life Sciences (Linda)
  • Mechanical Devices
  • Pharmaceuticals (Linda)
  • Processes (All Fields)