 With financial backing, Mannes and Godowsky built a dedicated laboratory and in 1924 took out additional patents on their work.In 1930 Eastman Kodak was so impressed with their results that they contracted them to move to Rochester and take advantage of Kodak's research facilities.By 1935, Mannes and Godowsky and the Kodak research staff had developed a marketable subtractive color film for home movies.