Axenfeld Law Group, an intellectual property firm that specializes in trademark matters, is here to help you enforce your trademark rights. There is no legal requirement to register a trademark, and you can sue to protect your trademark even if it's not registered.(216) 812-3744 815 Superior Ave. Patent Attorneys are Licensed to Practice Nationally — You're Not Restricted to Only Ohio Patent Attorneys. Patent Law is based upon Federal Law, not State Law. Below, you will find an overview of Ohio law on intellectual property licensing and four actionable tips for coming to an agreement. Our patent attorneys and trademark lawyers are here to help you become the IP leader in your market. Protect your intellectual property today! 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).