First and foremost, clearly document your invention to file a patent Texas. To register with Bexar County, verify your eligibility.This page provides information on the types of patents and types of patent applications, and the examination process. Call, visit or go online to ask for a license application. Patent Center Overview provides details on how to file an application in Patent Center. Quick Clinic Video Series. Click on the "Print" button and place the copy in your proposal as indicated in the Proposal Checklist.