Getting a patent in Arizona is the same as any other state. The patent application is filed with the United States Patent and Trademark Office (USPTO).This page provides information on the types of patents and types of patent applications, and the examination process. The short answer is Yes. You can still get a patent on your improvements, but only on your improvements. The Pro Se Assistance Program is dedicated to help independent inventors and small businesses meet their goal of protecting valuable intellectual property. Online filing for Trade Names and Trademarks has been fully implemented and PDF forms are no longer accepted. Utility patents have claims that describe what products or processes may be relevant to the coverage of the patent. Although you can submit your patent application via mail or fax, the easiest way to do it is to apply online at the USPTO. Improvement patents can enhance a current product, bring in new technology, or define a new use of a product.