Ugg boots trademark disputes are the disputes between some footwear manufacturers, as to whether "ugg" is a protected trademark, or a generic term and thus ineligible for trademark protection. In Australia and New Zealand, where "Ugg" is a generic term for the style of footwear,[1][2] 702 registered trademarks include the term "Ugg" in various logos and designs.[3][4] By contrast, UGG is a registered trademark of the California-based company Deckers Outdoor Corporation in over 130 countries worldwide, including the U.S., the European Union, and China.[2][5]
Ugg boots (sometimes called uggs)[6] in Australia and New Zealand are a unisex style of sheepskin boot. In many other countries, however, UGG boots are a brand of footwear owned by Deckers.[7] The boots are made of twin-faced sheepskin with fleece on the inside and with a tanned outer surface, often with a synthetic sole. The boots originated in Australia and New Zealand, initially as utilitarian footwear worn for warmth and comfort. UGG boots emerged as a fashion trend in the United States in the late 1990s and as a world-wide trend in the late 2000s.[7]