Drug Price Competition and Patent Term Restoration Act
The Drug Price Competition and Patent Term Restoration Act (Public Law 98-417), informally known as the Hatch–Waxman Act, is a 1984 United States federal law that established the modern system of generic drug regulation in the United States. The Act's two main goals are to facilitate entry of generic drugs into the market and to compensate the original drug developers for regulatory delays by the Food and Drug Administration.
Source: Wikipedia — Drug Price Competition and Patent Term Restoration Act (CC BY-SA 4.0)