Resumen
Patent policy aims not only to protect industrial property, but also to create incentives for innovation and thus to encourage companies to invest more in research and development. This policy should not consider excessive protection and should not constitute a barrier to the dissemination of knowledge. Indeed, by privatizing the knowledge of innovations, excessive protection is an obstacle to the dissemination of new ideas and a barrier to entry. This could therefore slow down innovation in the long term. The purpose of this article is to determine the optimal length of the patent in favor of innovation and growth.