This excerpt taken from the NVO 6-K filed Feb 9, 2009.
Sales and revenue recognition
Sales represent the fair value of the sale of goods excluding value added tax and after deduction of provisions for returned products, rebates, trade discounts and allowances.
Provisions and accruals for rebates to customers are provided for in the period the related sales are recorded. Historical data are readily available and reliable and are used for estimating the amount of the reduction in sales.
Revenue is recognised when it is realised or realisable and earned. Revenues are considered to have been earned when Novo Nordisk has substantially accomplished what it must do to be entitled to the revenues.
Revenue from the sale of goods is recognised when all the following specific conditions have been satisfied:
These conditions are usually met by the time the products are delivered to the customers. Licence fees are recognised on an accrual basis in accordance with the terms and substance of the relevant agreement.
As a principal rule, sale of intellectual property is recorded as income at the time of the sale. Where the Group assumes an obligation in connection with a sale of intellectual property, the income is recognised in accordance with the term of the obligation. On the sale of intellectual property where the final
sale is conditional on future events, the amount is recorded as income at the occurrence of such future events.
Revenue is measured at the fair value of the consideration received or receivable.