North Carolina ex rel. Cooper v. McClure et al., No. 03 CVS 005617 (Wake County Super. Ct. 2003)
State alleged a group of environmental consulting firms conspired to rig bids and inflate prices that the state pays to clean sites contaminated by leaking petroleum tanks.
State ex rel. Cooper v. McLeod Oil Co., No 05 CVS 13975 (N.C. Super Wake Co. July 30, 2007)
State alleged gasoline supplier and its affiliate conspired with other gasoline retailers to force gas station to raise its prices significantly. Parties settled for $25,000 civil penalties,
North Carolina ex rel. Cooper v. Byrd et al., Nos. 05CVS8038 through 3047 (Wake County Super. Ct. 2005)
State alleged parties conspired to fix prices and rig bids for public auctions of real estate
located in Raleigh, Cary, Chapel Hill, Durham, Angier, Apex, Hillsborough communities. The conspiracy involved properties that were up for routine auction through county Clerks of Superior Court due to foreclosure.
U.S. et al. v. EchoStar Communications, Corp., et al. No. 1:02CV02138 (D.D.C.)
Federal and State action to enjoin merger of two direct broadcast satellite (DBS) companies. The merging parties abandoned their merger agreement
Connecticut v. Mylan Laboratories, Inc. (In re Lorazepam & Clorazepate Antitrust Litigation), MDL No. 1290 (D.D.C. June 15, 2000) 205 F.R.D. 369 (D.D.C. 2002); No. 98 CV 3115 (D.D.C. 2000) – complaint
Plaintiff States alleged that Mylan Laboratories, Inc.(Mylan) and other drug companies entered into illegal agreements to monopolize the market for certain generic anti-anxiety drugs.
New York v. Microsoft Corp., 97 F. Supp. 2d 59 (D.D.C. 2000)
U.S. Department of Justice and the Plaintiff States alleged that the Defendant, Microsoft Corporation violated State and Federal law by maintaining a monopoly in the market for Intel-compatible personal computer operating systems and by illegally tying its Windows operating system to its Internet Explorer browser.
Texas v. Zeneca, 1997 U.S. Dist. LEXIS 13153 (N.D. Tex. 1997)
States sought an injunction and monetary damages from Zeneca, Inc. (Zeneca), alleging that the company conspired with distributors of its crop protection chemicals to maintain the resale price of the chemicals.
In re Clozapine Antitrust Litigation, MDL No. 874 (N.D. Ill. 1991)
Plaintiff States sought monetary damages and injunctive relief against Sandoz Pharmaceuticals Corporation (Sandoz), alleging the company unlawfully required those who purchased its drug, Clozapine, to also purchase distribution and patient monitoring services from Sandoz.
In re Compact Disc Minimum Advertised Price Antitrust Litigation MDL No. 1361 (D. Me. 2002) MDL-1391; No. 00-CIV-5853 (BSJ) (S.D.N.Y Aug. 8, 2000) (complaint)
Plaintiff States sought damages and injunctive relief, alleging that Defendant CD distributors unlawfully conspired to implement stringent minimum advertised price (MAP) policies in violation of antitrust laws.
In re: Buspirone Antitrust Litigation,Case No. 01 CV 11401, MDL 1410, MDL 1413 (S .D.N.Y.) (see also Ohio v. Bristol Myers Squibb
Plaintiff States sought damages and injunctive relief, alleging that Bristol-Myers Squibb Co. (BMS) attempted to maintain an unlawful monopoly on buspirone hydrochloride, a medication used to treat generalized anxiety. In settling, BMS agreed to a stipulated injunction and to reimburse consumers and state and local public entities for overcharges. In 2008, plaintiff states sued BMS for failing to report accurately to the states, pursuant to the settlement, a patent arrangement involving the drug Plavix. The company pleaded guilty to lying to the FTC and the states recovered $1.1 million in fines.

