(4) 1990s: In 1992, Dennis Kozlowski became CEO of Tyco International, and, for the next several years, the company again adopted an aggressive acquisition strategy, eventually acquiring (by some accounts) over 1000 other companies between 1991 and 2001. Major acquisitions in the 1990s included: Wormald International Limited, Neotecha, Hindle/Winn, Classic Medical, Uni-Patch, Promeon, Preferred Pipe, Kendall International Co. , Tectron Tube, Unistrut, Earth Technology Corporation, Professional Medical Products, Inc. , Thorn Security, Carlisle, Watts Waterworks Businesses, Sempell, ElectroStar, American Pipe & Tube, Submarine Systems Inc. , Keystone, INBRAND, Sherwood Davis & Geck, United States Surgical, Wells Fargo Alarm, AMP, Raychem, Glynwed, Temasa and Central Sprinkler designs. To reflect Tyco's global presence following the abundant acquisitions, the company's name was changed from Tyco Laboratories, Inc. to Tyco International Ltd. in 1993. In addition, Tyco launched The Pipeline, an internal employee newsletter; the title was later changed to Tyco World