To apply for a patent, you must file an application and pay required fees. It is possible, though challenging, to file a patent application on your own.The remaining steps will guide you through the filing process. First and foremost, clearly document your invention to file a patent Texas. Each patent application has several forms that must be filled out and submitted. A list of these forms can be found here. To get a patent in Texas, you must first go through the patent application process. The first patent application OTC can file with the USPTO is a provisional patent application. To be patentable, an invention must be useful, novel, and non-obvious. This means: An invention must not have been previously described in a publication.