This section applies solely for the purposes of computing the credit allowed under division (A) of section 5747.05 of the Revised Code and computing income taxable in this state under division (D) of section 5747.08 of the Revised Code.
All items of nonbusiness income or deduction shall be allocated in this state as follows:
The extent of utilization of tangible personal property in a state is determined by multiplying the rents or royalties derived from such property by a fraction, the numerator of which is the number of days of physical location of the property in this state during the rental or royalty period in the taxable year and the denominator of which is the number of days of physical location of the property everywhere during all rental or royalty periods in the taxable year. If the physical location of the property during the rental or royalty period is unknown or unascertainable by the nonresident, tangible personal property is utilized in the state in which the property was located at the time the rental or royalty payor obtained possession.
A patent is utilized in a state to the extent that it is employed in production, fabrication, manufacturing, or other processing in the state, or to the extent that a patented product is produced in the state. If the basis of receipts from patent royalties does not permit allocation to states or if the accounting procedures do not reflect states of utilization, the patent is utilized in this state if the taxpayer's domicile was in this state at the time such royalties were paid or accrued.
A copyright is utilized in a state to the extent that printing or other publication originates in the state. If the basis of receipts from copyright royalties does not permit allocation to states or if the accounting procedures do not reflect states of utilization, the copyright is utilized in this state if the taxpayer's domicile was in this state at the time such royalties were paid or accrued.
R.C. § 5747.20