Both assignments and trademark co-existence agreements are generally enforceable.  Here, the original owner of the “Crazy Horse” trademark entered into a co-existence agreement with Russell Road’s assignor.  Then the original owner assigned its rights in the trademark to Spencer.  Finally, the co-existence agreement was assigned to Russell Road.  Held, both the co-existence agreement and its assignment were enforceable, and the rights they conferred on Russell Road were superior to the rights of the assignee of the original owner of the trademark.