Ashcroft v. ACLU, 542 U.S. 656 (2004) The Court upheld a preliminary injunction barring the enforcement of the Child Online Pornography Act, because the statute likely violates the First Amendment.
eBay Inc. v. MercExchange, L.L.C., 547 U.S. 1015 (2006) The traditional four-factor test applied by courts of equity when considering whether to award permanent injunctive relief to a prevailing plaintiff applies to disputes arising under the Patent Act. A judgment reversing the denial of a motion for permanent injunctive relief in a patent infringement case against eBay is vacated where neither court below correctly applied the traditional four-factor framework that governs an award of injunctive relief.
MGM, Inc. v. Grokster, Ltd., 545 U.S. 913 (2005) One who distributes a device with the object of promoting its use to infringe copyright, as shown by clear expression or other affirmative steps taken to foster infringement, going beyond mere distribution with knowledge of third-party action, is liable for the resulting acts of infringement by third parties.
Nat'l Cable & Telecomm. Ass'n v. Brand X Internet Serv., 545 U.S. 967 (2005) The FCC's conclusion, finding that broadband cable modem companies are exempt from mandatory common-carrier regulation, is a lawful construction of the Communications Act under Chevron v. NRDC, 467 U.S. 837 (1984), and the Administrative Procedure Act.
US v. Am. Library Ass'n, Inc., 539 U.S 194 (2003) Public libraries' use of internet filtering software does not violate their patrons' First Amendment rights, thus the Children's Internet Protection Act (CIPA) does not induce libraries to violate the Constitution. CIPA does not impose an unconstitutional condition on libraries receiving federal funding.