Each business partner must sign the Assumed Name Certificate before the notary in order for the certificate to be filed with the County Clerk's office. You do not have to register your mark to acquire common law rights to it.Registering your mark with the Texas Secretary of State provides certain benefits:. Yes, everyone conducting business as a partner must file an assumed name for each business name. Trademark Application - Application for registration of a trademark or service mark. Rev. All you need to do is fill out an Application to Update an Existing Certificate of Occupancy to request a name change on the existing certificate of occupancy. Start using your name as a trademark, and put the â„¢ symbol after it in every prominent place you use it. State filings for business organizations serve a similar purpose- to protect the public. 300 Convent St. Suite 1080. San Antonio, TX 78205.