Abbott Laboratories is an Illinois corporation, incorporated in 1900. Abbott's principal business is the discovery, development, manufacture, and sale of a broad and diversified line of health care products.Abbott has four reportable revenue segments: Pharmaceutical Products, Diagnostic Products, Ross Products, and International. Abbott also has a 50 percent owned joint venture, TAP Pharmaceutical Products Inc.During the first half of 2006, Abbott acquired the vascular intervention and endovascular solutions businesses of Guidant Corporation. Effective with this acquisition, Abbott’s base vascular business and the acquired Guidant businesses are reported as the Vascular Products segment. In December 2006, Abbott acquired Kos Pharmaceuticals, Inc., a specialty pharmaceutical company that developed and marketed proprietary medications for the treatment of cardiovascular, metabolic and respiratory diseases.

Acquired Companies: Kos Pharmaceuticals Inc., Knoll, Solvay Pharmaceuticals, Evalve Inc., Hokuriku Seiyaku Co., Ltd, Facet Biotech Corporation