Banksy, one of the world’s most notorious street artists, has learned a hard lesson about trademarks. Trademarks is a type of intellectual property (“IP”) that protects things such as brand names and logos. The British artist recently lost a court battle in which the trademark for his popular Flower Thrower image was declared invalid. However, Banksy’s contempt for copyright, which protects artistic expressions such as his graffiti art, and other IP is well documented. Why then did he seek to trademark the Flower Thrower image in the first place? And why was the trademark found invalid? It is all tied to Banksy’s desire keep his identity a secret.