Who ownes British Leyland Trade Mark?

The British Leyland Trademark was founded in 1968, but as of 1986 it is now defunct. The trademark was succeeded by Rover Group (defunct as of 2005) and Jaguar Cars. Rover Group was succeeded by Land Rover and MG Rover Group (defunct as of 2005). Jaguar Cars is owned by Tata Motors, as is Land Rover.