sentences:  In the 1950s the company had developed a powerful alkaline AAA cell for use in a Kodak camera flash, but the Kodak company required Mallory to license the design to competitors to ensure availability in the consumer market.In 1957 the company sold stock.In 1960 founder P. R. Mallory handed control of the company to his son G. Barron Mallory, who was chairman from 1960 to 1968 and active on the board for many years afterward.