Find a patent practitioner

The listings contain contact information for attorneys and agents with licenses to practice before the US Patent and Trademark Office. Currently, there are 13432 active agents and 37171 active attorneys. All searches reflect current information available to OED. Information concerning a practitioner ’s status as an attorney is based on records provided to the Office of Enrollment and Discipline and might not reflect the practitioner ’s status in a State Bar. Individuals interested in a practitioner ’s status in a State Bar should contact that State Bar for specific information.

Format of ZIP file:

Comma separated text file

• Last name, first name, middle name, post-nominal
• Business/Firm name line 1, line 2
• Street address line 1, line 2
• City, state, postal code
• Phone number
• Registration number
• Indication of attorney/agent/government employee status

Please visit Historical Roster Books page to view and download files since 1883.