Did you know there is one US location in which burger chain Burger King is not able to use their brand name? In Mattoon, IL, the Hootses family was able to prove prior use of the name in court in 1968, despite the chain’s successful trademark registration. As a result, the family can use the name only in the Mattoon area, and the Florida-based burger chain can use the name in every other area of the US, except for Mattoon, IL.