Find Dairy Queen DQ Near Me And DQ Hours Details: Dairy Queen , often called as DQ , DQ is a chain of Ice cream and fast food restaurants owned by International Dairy Queen, Inc, a subsidiary of Berkshire Hathaway. International Dairy Queen, Inc., also owns Orange Julius and Karmelkorn . The first DQ restaurant was located in Joliet, Illinois . It was operated by Sherb Noble and opened for business on June 22, 1940. It served a variety of frozen products, such as soft serve ice cream. Dairy Queen History: The soft-serve formula was first developed in 1938 by Douds, Iowa, born John Fremont “J.F.” “Grandpa” McCullough (1871‒1963). Dairy Queen reported over 6,400 stores in more than 25 countries; about 4,500 of its stores (approximately 70%) were located in the United States. Dairy Queens were a fixture of social life in small towns of the Midwestern and Southern United State...