Whether filing based on actual use or proposed use of a trademark, it is best to file an application as quickly as possible. In order to register a mark in Minnesota, it must have been used commercially prior to registration.The following forms are available in pdf. What is the Trademark Electronic Application System (TEAS)?. The Trademark Electronic Application System (TEAS) allows you to fill out online USPTO forms. Resources are available for Minnesota residents to help inventors and entrepreneurs learn more about protecting their intellectual property. Apply online (TEAS). File a trademark application and other documents online through TEAS. Registered in U.S. Patent and Trademark Office. Minnesota Supreme Court.