In 1902, Willis Carrier submitted his design for the first modern air-conditioning system, accomplishing a feat that was once thought to be impossible – control of the indoor environment. His invention would give rise to a world-leading heating, air-conditioning and refrigeration company and create an entire industry essential to global productivity and personal comfort. In 1979 UTC acquires Carrier: The acquisition of Carrier by United Technologies would reshape the global market for heating, ventilation and air conditioning.