If you invent a fictional character such as the Hulk, you have the right to obtain a trademark for the Hulk and sell the right to use the name and character for advertising purposes.

Question

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The creation of a fictional character can be protected under trademark law if it is used in commerce to distinguish the goods or services of one company from another. Once the trademark is registered, the owner has the exclusive right to use the character's name and likeness for commercial purposes, including licensing it to others for advertising and merchandise. This is a common practice in the entertainment industry.

If You Invent a Fictional Character Such as the Hulk