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
Wicked Witch of the East North was able to defeat Mombi, but was powerless to overthrow the witch of the east and free the Munchkins. She was not in any way related to the Wicked Witch of the West, (as is made out to be in several adaptions) but leagued together with her, and also the Wicked Witch Mombi and the Wicked Witch of the South, to conquer and divide Oz among themselves in four sections as recounted in Baum's fourth Oz book, "Dorothy and the Wizard in Oz" (1908). After the fall of Pastoria, the last mortal King of Oz, the old witch conquered