"As part of war reparations specified in the 1919 Treaty of Versailles following Germany's surrender after World War I, Aspirin (along with Heroin) lost its status as a registered trademark in France, Russia, the United Kingdom, and the United States, where it became a generic name and can be spelled in lower case.[18][19][20] Today, "aspirin" is a generic word in Australia, France, India, Ireland, New Zealand, Pakistan, the Philippines, South Africa, United Kingdom and the United States.[21] Aspirin, with a capital "A", remains a registered trademark of Bayer in Germany, Canada, Mexico, and in over 80 other countries, where the trademark is owned by Bayer, using a uniform chemical formula for all markets, but adapting the packaging and physical aspects for each.[22][23][24] Since the word "aspirin" has become generic in many countries, Bayer has embarked on an aggressive trademark protection campaign in the United States and owns more than 1,000 U.S. trademarks on various pharmaceutical drugs.[25]" from wikipedia