Are both Diamond v. Chakrabarty and Gates v. Collier United States Supreme Court cases?
Diamond v. Chakrabarty Diamond v. Chakrabarty, 447 U.S. 303 (1980), was a United States Supreme Court case dealing with whether genetically modified organisms can be patented.
United States v. Lopez United States v. Alfonso D. Lopez, Jr., 514 U.S. 549 (1995) was the second United States Supreme Court case since the New Deal to set limits to Congress' power under the Commerce Clause of the United States Constitution. The Supreme Court held that the federal Gun-Free School Zones Act of 1990, which banned possession of handguns near schools, was unconstitutional because it did not have a substantial impact on interstate commerce. After the "Lopez" decision, the act was amended to specifically only apply to guns that had been moved via interstate commerce.