Trademark Application - Application for registration of a trademark or service mark. Rev. Log in to access forms.Select the type of form listed below for direct links to TEAS and TEASi forms. You can file an application to register your trademark or service mark with an intenttouse (ITU) filing basis. This guide covers a wide range of intellectual property topics, including copyright, patents, trademarks, and trade secrets. Apply online (TEAS). File a trademark application and other documents online through TEAS. Texas Trademarks The Texas Secretary of State's web site offers Texas trademark forms and a searchable database of Texas trademarks. Are you thinking of filing your trademark application yourself? USPTO patent application no.