Prior to writing claim answer these questions: • What is the invention? • What are the pieces and parts that make up the invention?The patent system was created to protect and promote innovation and economic growth. It is possible to prepare and file your own provisional patent application. The purpose of this guide is to provide you with basic information about filing a utility patent application with the USPTO. Claims for U.S. patents must be specific enough to distinguish the invention from prior art. They must also be clear, logical, and precise. A registered patent attorney can draft, prepare, and prosecute a patent application regardless of what state they or their client are in. Simply click on the link to view the sample patent in a PDF format. Sample Patent – Michael Neustel Inventor.