Bayer Corporation is the Pittsburgh-based American arm of Bayer. Its headquarters are located in Robinson, a western suburb of the city. In addition to these main offices, it has 30 additional corporate centers in 17 states from California to Georgia to Massachusetts. Bayer began marketing in America soon after the company's inception in Germany. In the late 1800s, they began to sell their trademark medication, aspirin. While the name aspirin became synonymous with Bayer for over a quarter of a century, the company lost the naming right during World War I, due to the company's German origin.... Bayer returned to the United States in 1978 with the purchases of Miles Laboratories and Cutter Laboratories, which returned some of the company's most famous products to their corporate umbrella. In 1994, Bayer finally reacquired full rights to all former Bayer products after they purchased the Winthrop division of over-the-counter drugs from GlaxoSmithKline.
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