shipping and storing peanut butter was difficult. In 1921, Joseph Rosefield solved this issue by conjuring up a method of making it with partially hydrogenated oil to solidify the spread and keep ...

Previously Joseph Rosefield, a California-based chemist ... creating the distinction between smooth and crunchy peanut butter. Marcellus Gilmore Edson holds what is likely the first patent ...

But not peanut butter. But in 1932, Rosefield decided to change his brand name to “Skippy.” This decision came right on the heels of the Skippy comic strip’s Hollywood success and ...

In 1932, in the wake of film’s success, the Rosefield Packaging Company changed the name of its peanut butter product from “Luncheon Brand” to “Skippy,” and began (without permission ...

Then, in 1921, a Californian named Joseph Rosefield filed a patent for applying a chemical process called partial hydrogenation to peanut butter, a method by which the main naturally occurring oil ...

Peter Pan, introduced in 1928, was the first dominant national peanut butter. It used a partial-hydrogenation process patented by Joseph Rosefield, an entrepreneur from Lexington, Kentucky.