Purdue Law Offices
- An established law firm in Toledo that specializes in patent law.
- http://www.purdue-law.com/

Joseph H. Taddeo
- Cleveland intellectual property attorney.
- http://www.josephtaddeo.com

Gallagher & Dawsey Co, LPA
- Provide property legal services, help with copyright applications and infringement litigation, and offer infringement advice.
- http://www.invention-protection.com

Pearne & Gordon LLP
- Praticing exclusively in patent, trademark, copyright, trade secret, and related intellectual property law matters.
- http://www.pearnegordon.com

Fay, Sharpe
- One of Ohio's largest IP law firms.
- http://www.faysharpe.com

Tarolli, Sundheim, Covell, Tummino and Szabo, LLP
- Intellectual property law firm, focusing on patent and trademark law.
- http://www.tarolli.com

Robert R. Hussey Co., LPA
- Intellectual property law firm, with offices in Niles and Cleveland.
- http://www.patent-tmlaw.com/