Major DOJ Antitrust Cases 1. United States v. Standard Oil Co. of New Jersey (1911) - Duration: 7 years (1904–1911) - Outcome: Standard Oil was ruled

Major DOJ Antitrust Cases 1. United States v. Standard Oil Co. of New Jersey (1911) - Duration: 7 years (1904–1911) - Outcome: Standard Oil was ruled an illegal monopoly and broken up into 34 companies. 2. United States v. Microsoft Corp. (1998) - Duration: 4 years (1998–2002) - Outcome: Initially ordered to split, but after appeals, Microsoft avoided a breakup and instead agreed to business restrictions. 3. United States v. AT&T (Bell System) (1982) - Duration: 8 years (1974–1982) - Outcome: AT&T agreed to a settlement, leading to the 1984 breakup into seven "Baby Bells" to increase competition.