Considering patenting your own invention and want to do a patent search? Online filing for Trade Names and Trademarks has been fully implemented and PDF forms are no longer accepted.A patent attorney or agent can provide guidance for completing the provisional patent application or can draft it for you. It is possible and it's called drug repurposing. You can apply for a method of use patent where you claim a novel use for an existing drug. This page provides information on the types of patents and types of patent applications, and the examination process. Best Lawyers provides a trusted directory of top Patent legal professionals in Phoenix, Arizona, United States. Patent Center Overview provides details on how to file an application in Patent Center. Quick Clinic Video Series. Submitting a provisional patent application is easy.