Willis Carrier
Willis Haviland Carrier (November 26, 1876 – October 7, 1950) was an American engineer, best known for inventing modern air conditioning. Carrier invented the first electrical air conditioning unit in 1902. In 1915, he founded Carrier Corporation, a company specializing in the manufacture and distribution of heating, ventilation, and air conditioning (HVAC) systems.
Walter P. Chrysler Jr.
In 1934, Chrysler founded the Airtemp division of Chrysler Corporation, which developed the first automotive air-conditioning system. After establishing worldwide distribution, he transferred the patent to the parent company but remained a director. In the following year he became president of the Chrysler Building; he continued in that position until 1953.