B. B. Chemical Co. v. Ellis

This is a companion case to Morton Salt Co. v. G. S. Suppiger Co., ante, p. 488, and involves the question whether the owner of a method patent who authorizes manufacturers to use it only with materials furnished by him may enjoin infringement by one-who supplies the manufacturer with materials for use by the patented method and aids in such use.

Petitioner brought the present suit for an injunction and an accounting for infringement of the Ellis Patent, No. 1,830,428, of November 3, 1931, for a method of reinforcing insoles in shoe manufacture. Respondents denied infringement and set up as a…