Velsicol Corp. v. Hyman

A statement of certain uncontested facts is necessary to an understanding of the issues presented on the appeal.

Defendant, a chemist, with degrees from the University of Chicago and the University of Leipzig, returned to Chicago in 1924; before his connection with plaintiff he was employed by the International Filter Company as a research chemist, by the Transo Envelope Company (hereafter called Transo), organizing and equipping a laboratory, and by the Pure Oil Company as a research chemist; with each of these companies he signed a patent assignment agreement. In November 1930, after leaving…