definiens: means the gross revenue actually received for the sale of licensed Products by Licensee and itssublicensees during a relevant period of time ; excluding ( i ) sales, use occupation or excise tax directly imposed and withreference to particular sales, ( ii ) duties or other governmental charges directly imposed and with reference to particular sales,(iii ) prepaid or allowed freight ( to the extent included in the amount billed the third party customer ), postage, duty orinsurance included therein, ( iv ) returns, discounts, rebates, and discounts actually allowed, refunds, credits or repayments dueto rejections, defects or returns, and net of amounts previously included in Net Sales that were written - off during such periodas collectible . Licensor is due one royalty as defined in this License Agreement on the sales of the same Licensed Productswhether paid directly by the Licensee or by a sublicensee . No deductions shall be made for commissions paid to individualswhether they are with independent sales agencies or regularly employed by LICENSEE and on its payroll, or for cost ofcollections . If the Licensed Product ., is commercially used by, sold or leased to any Person for a consideration other thanmoney, Net Sales shall be the gross selling price of comparable Licensed Products sold in arm ’s length transactions byLicensee or, if no sales or leases of comparable Licensed Products have been made, then the fair market value thereof exceptthat this latter provision shall apply only to commercial use and shall not apply to Licensed Products transferred, conveyed orotherwise used by third parties for research, development and/or clinical trials performed on behalf of or for Licensee