To protect the health and safety of the public and our employees, DCP has limited on-site staffing at 450 Columbus Blvd. While mail and phone calls will be processed as quickly as possible, we recommend using our online services, or sending an email to the appropriate division/person instead. We apologize for any inconvenience.


For information regarding getting inventions registered for a patent, contact the U.S. Patent and Trademark Office.

U.S. Patent and Trademark Office
2121 Crystal Drive, Suite 0100
Arlington, VA  22202

Phone:  703-308-4357
Toll-free 800-786-9199