Abstract: The clause of copyright and patent rights of Constitution of the U. S. A provides that, to promote science and useful arts progress by giving authors and inventors for their creation of a limited exclusive right. In this connection, we can examine the aim of inteuectual property law from the perspective of the Constitution. The aim of intellectual property law connotates the concept of balancing of interests. A certain degree of understanding can be obtained as to the relationship between the aim of intellectual property law and balancing of interests from the above provisions.