Reddi-Wip remains one of Conagra Brands' major brands[3] and is the second most eaten brand of whipped topping in the United States behind Cool Whip.[4]
In 1948, he invented Reddi-Wip in collaboration with Aaron Block, using real cream. They developed a new valve more suitable for dispensing whipped cream, with fluting to create a pattern and a tilt-to-open design that preserves the propellant.[citation needed] Other similar products were on the market at the time, including the non-dairy Rich's Whip Topping and Delsoy Presto Whip, which were developed at Henry Ford's soybean laboratories.[6] Delsoy Presto Whip was packed in pressurized cans that had been developed for military insecticide sprays during the war.[citation needed]
Lapin applied and received a patent for "dispensing valves for gas pressure containers". He achieved national distribution in 1954, selling his company in 1963.[citation needed] In 1968, Hunt-Wesson acquired Reddi-Wip from Marcus Lipsky, Lapin's brother-in-law.[7][8] Lipsky was an associate of Chicago mobster Ross Prio.[9]