I am a registered patent attorney with experience helping clients acquire patents around the world. I can prepare and prosecute your patent application.This page provides information on the types of patents and types of patent applications, and the examination process. The purpose of this guide is to provide you with basic information about filing a utility patent application with the USPTO. 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. To file a patent application, you must prepare legal and technical information about your invention. Professional assistance is recommended. A provisional application is an application only that can be filed in the united states. BSEM released study results that showed the company's signature technology, BioREtain, showed superior performance over the traditional standard of care.