|A.||Except as otherwise provided in this title, whoever without authority makes, uses or sells any patented invention, within the United States during the term of the patent therefor, infringes the patent.|
|B.||Whoever actively induces infringement of a patent shall be liable as an infringer.|
The Patent Act grants to the patentee the right to exclude others from making or using or selling the claimed invention. The making, using, or selling of a patented invention outside the United States thus is not proscribed unless it induces or contributes to a domestic infringement.
In 1859 the Supreme Court held, "It is well settled that the mere making of a patented machine, though it is neither used nor sold, is an infringe-