The United States Patent and Trademark Office, or USPTO for short, is the federal agency that reviews and grants patents and trademarks. However they do not require attorneys to apply for a special permit in order to manage trademark applications, thus the lack of a practitioner list.    So, if you need to find a licensed trademark attorney Miami, a simple Google search would help locate your state and local bar associations. You can also ask for referrals to friends, family or business partners more familiar with the trademark registration process.