definiens: means all gross revenues actually received by Lice nsee and its Affiliates from the sale of any ( a ) Licensed Products in the Field of U se or in the Second Field of Use, ( b ) Joint Inventi on Licensed Products in the Drug Delivery Field, and ( c ) [COMPANY] Invention Licensed Products in the Drug Delivery F ield, less ( x ) normal and customary rebates, and cash and trad e discounts, ( y ) sales, use, withholding and/or oth er excise taxes or duties actually paid, 4 ( z ) the cost of any packages and packing separately billed and paid, ( xx ) insurance costs and outbound transportation charges prepaid or allowed, ( yy ) imp ort and/or export duties actually paid and ( zz ) amo unts allowed or credited due to returns ( not to exceed t he original billing or invoice amount ), as may be a pplicable