A smart Santa Clara County inventor will not waste time and money filing a patent application on an idea that has already been patented. This page provides information on the types of patents and types of patent applications, and the examination process.The answer is yes, You can patent a process. A process patent is one of the main categories of things that can be patentable through utility Patents. We guarantee valid patent filing. This article will guide you through the process. We'll cover how to file a utility patent application, design and plant patents. This website provides necessary forms and agreements related to patents and inventions. For more information, contact (408) 554-4408. Selling Before Patenting: Yes, you can start selling your product before filing a patent application.