Copyright status of The Wizard of Oz and related works in the United States file rival trademarks. Disney filed a trademark on "Oz the Great and Powerful." One week later, WB filed its own trademark for "The Great and Powerful Oz." The US Patent and Trademark Office suspended WB's attempt at a trademark because Disney had filed basically the same one a week earlier. The Wicked Witch of the West is one of the most iconic villains of modern times. However, the iconic version of the Wicked Witch is Margaret Hamilton's portrayal in the 1939 movie, which is copyrighted. The character of the Wicked Witch from the book is in public domain, but that
Land of Oz different direction with her Oz books, introducing European elements such as the title character of "The Yellow Knight of Oz", a knight straight out of Arthurian Legend. At the time of "The Wonderful Wizard of Oz", the lands in the North, South, East and West of Oz are each ruled by a Witch. The Witches of the North and South are good, while the Witches of the East and West are wicked. Glinda (the Good Witch of the South) is later revealed to be the most powerful of the four, although later Oz books reveal that the Wicked Witch of