If you're an inventor or small business owner, you may be eligible for free legal assistance in preparing and filing a patent application. What is the process for filing a trade name or trademark in Arizona?To register a trade name or trademark applicants must use the Secretary of State online. Log in to access forms. Select the type of form listed below for direct links to TEAS and TEASi forms. The Arizona Public Patent Program exists to help you secure free, expert assistance for your invention. The State of Arizona Research Library is Arizona's designated Patent and Trademark Resource Center (PTRC). The application primarily requires you to provide a written description of the trademark. The State of Arizona Research Library is Arizona's designated Patent and Trademark Resource Center (PTRC). The U.S. Patent and Trademark Office (USPTO) is the agency responsible for granting U.S. patents and registering trademarks.