Park, Vaughan, Fleming & Dowler LLP is a collection of lawyers and patent agents with decades of experience in the world’s largest IP firms, in-house counsel positions, judicial clerkships, and as engineers in the country’s most innovative corporations.


Our rich histories give us unique insight into our clients’ issues (whether legal or technological) and our operating platform gives us the flexibility to pair our services to each client’s financial and business situation.

We have prepared and had issued thousands of patent applications throughout the world using our team of advanced-degree professionals, whose educational and professional experience not only make them conversant in our clients’ technologies but also their native languages, such as Mandarin Chinese, German, French, Spanish, and others.

We have successfully litigated and tried patent cases in jurisdictions all across the United States, including proceedings before the International Trade Commission, and appeals before the U.S. Court of Appeals for the Federal Circuit and the Ninth Circuit. Our enforcement efforts also extend to proceedings before the U.S. Patent & Trademark Office, including inter– and ex-parte reexaminations, inter-partes reviews, and other post-grant proceedings.

Learn more about our history, professionals, services, and clients.