To protect the health and safety of the public and our employees, DCP employees will no longer be at 450 Columbus Blvd. Please do not send mail. We recommend using our online services, or sending an email to the appropriate division/person instead. Phone lines will have limited support, and voicemails will be returned when possible. 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