About UGG trademark controversy, so far it has not been a final result . Take a look at the article quoted from Wikipedia.
In 1971, Shane Stedman registered the term Ugh-boot and other terms as trademark with the Australian Trade Mark Registry. These trademarks lapsed due to non-usage, but were subsequently sold to the American company Deckers Outdoor Corporation, which also registered other trademarks, such as UGG Australia in 1999. By 2003, Deckers had begun a campaign of legal threats against Australian manufacturers and vendors using variants of “ugh boots” to describe their wares. About UGG Trademark Controversy – continue reading…