Adams v. Burke, 84 U.S. (17 Wall.) 453 (1873), was a United States Supreme Court case in which the Court first elaborated on the exhaustion doctrine. According to that doctrine, a so-called authorized sale of a patented product (one made by the patentee or a person authorized by it to sell the product) liberates the product from the patent monopoly. The product becomes the complete property of the purchaser and "passes without the monopoly." The property owner is then free to use or dispose of it as it may choose, free of any control by the patentee. Adams is a widely cited, leading case. A substantially identical doctrine applies in copyright law and is known as the "first sale doctrine".