Ohio Rev. Code Ann. § 1701.16
(A) Unless the articles otherwise provide, a corporation by its directors may grant options to subscribe for or to purchase shares of any authorized class at the times and on the terms that are set forth in the securities, or in the contracts, warrants or instruments that evidence the options, which contracts, warrants, or instruments may be transferable or nontransferable and may be separable or inseparable from securities, upon the following conditions:
(B)
(1) The securities, contracts, warrants, or instruments that evidence the options may contain any terms not repugnant to law for the protection of the holders of the options, including, but not limited to, the following:
(2) The express or implied authority conferred by division (B)(1) of this section or any other section of this chapter for securities, contracts, warrants, or instruments that evidence options to contain a condition on the exercise or redemption of options that precludes the holder or holders of at least a specified number or percentage of the outstanding common shares of a corporation from exercising or redeeming options shall apply only to the following: