Getting a patent in Ohio is the same as any other state. The patent application is filed with the United States Patent and Trademark Office (USPTO).It can be helpful to draft your claims first. In this post we go over patent drafting errors that could raise 35 U.S.C. 112 issues during litigation and discuss how to avoid them. It is possible to prepare and file your own provisional patent application. A prelude to patent claim drafting. Today we pick up from there to discuss in a very basic way what must go into your patent claim. 36 Years of Successful Practice. Notes: The number of patent assignments for a county is based upon the cumulative assignees in a county for the designated time-period, i.e. Read a sample Read a sample.