According to this report by the US National Research Council, software patents were introduced by lawcourt decisions without support from the legislature, and it seems doubtful whether the patent expansion is promoting the progress of science and the useful arts, as Congress intended.
Selon ce rapport du Conseil National de la Recherche des Etats-Unis, les brevets logiciels ont iti introduits par les cours de justice sans le soutien du corps ligislatif, et il semble douteux que l'expansion des brevets promeuve le progrhs des sciences et des arts appliquis, comme l'entendait le Congrhs.