The cost of research and development of new products is often extremely high for firms. In order to reap a profit from their efforts, they must be able to count on the guarantee of ownership over their intellectual property. In the absence of such a guarantee, the incentive of firms to research and innovate declines substantially, resulting in a less dynamic business climate. The duplication of effort by research firms is rare in practice, and the efforts to develop spin-off products can easily become the beginning of entirely new inventive projects.