The USPTO maintains a roster of patent agents and attorneys who are authorized to practice before the United States Patent and Trademark Office. You may use their database (search or download) to obtain the most current information on practitioners in your city, county or zip code.
We recommend that an attorney be consulted when an interpretation of the law is needed. See Patent and trademark practitioners on the USPTO website for more information, including why trademark applicants in particular are encouraged to hire an attorney. See also the new trademark rule requiring foreign-domiciled applicants and registrants to have a U.S.-licensed attorney.