A failure to follow this approach can lead to unnecessary delays in the prosecution of the application. 2100-6. Rev. 01.2024, November 2024.Here's how to get a U.S. patent on your idea or invention without a lawyer. Follow these steps to do a patent search and file a patent application yourself. The Pro Se Assistance Program is dedicated to help independent inventors and small businesses meet their goal of protecting valuable intellectual property. The patentability of repurposed compounds will depend on the specifics of your situation. Your best bet would be to ask a patent attorney. The first is whether it is possible to obtain a patent on an invention that involves a combination of known, "off-the-shelf" parts. The following are a selection of widely known patented chemical compounds. Ing steps) in a product claim.