Preparing a patent application and engaging in the USPTO proceedings to obtain the patent requires knowledge of patent law and USPTO procedures. To apply for a patent, you must file an application and pay required fees.In order to obtain a patent in the U.S. you must first file a patent application. Once the initial formalities have been completed, most Patent. Learn everything about patent prosecution. Understand the process, from filing to approval, and how to protect your intellectual property. Patent prosecutioneverything that takes places after a patent application is filed until it issuescan be a complex and lengthy process. A successful prosecution strategy begins with the creation and submission of a complete and proper initial application. To do this, a request for continued examination is filed along with a response to the final office action. How does one know if an invention is patentable?