Ohio Revised Code Title XLI. Labor and Industry § 4123.74

Employers who comply with section 4123.35 of the Revised Code shall not be liable to respond in damages at common law or by statute for any injury, or occupational disease, or bodily condition, received or contracted by any employee in the course of or arising out of his employment, or for any death resulting from such injury, occupational disease, or bodily condition occurring during the period covered by such premium so paid into the state insurance fund, or during the interval the employer is a self-insuring employer, whether or not such injury, occupational disease, bodily condition, or death is compensable under this chapter.