UNITED TECHNOLOGIES

Elevators, escalators, moving walkways and parts thereof; elevator door operators comprised of motors and linkages to open and close elevator doors; machine-roomless hydraulic elevators and component parts therefor; hydraulic elevators and parts therefor; elevator operating apparatus used for passenger entry on floor designation, namely, mechanical elevator controls

Electronic controls for use with elevators, lifts, escalators, moving walkways, machine-roomless hydraulic elevator systems and related carriers; computer software for control of the operation of elevators, lifts, escalators, moving walkways, machine-roomless hydraulic elevators; computer software for controlling door operations, electrical controllers for door operation and door control, electrical position/velocity sensors for controlling door operation; electronic safety control controls, namely, electronic sensors to prevent the closing of elevator or related carrier doors until all passengers or cargo are clear thereof; elevator controller, elevator dispatcher, and elevator drive control to manage the elevator dispatcher and elevator drive control

Monitoring elevators, escalators, lifts, moving walkways, machine-roomless hydraulic elevator systems, related carrier performance and diagnosing elevators, escalators, lifts, moving walkways, machine-roomless hydraulic elevator systems and related carrier performance problems utilizing electronic equipment to ensure proper functioning