Van Der Grinten v. Dieterich-Post Co.

MATHEWS, Circuit Judge.

Appellants, plaintiffs below, charged appellee, defendant below, with' infringing nine claims of a patent of which appellant Van der Grinten is sole owner and appellant Charles Bruning Company, Inc., is, in the United States, sole licensee. Appellants prayed for an injunction and for an accounting of profits and damages. Appellee pleaded invalidity of the patent and noninfringement thereof. The District Court held two of the claims valid and infringed, held the other seven claims valid, but not infringed, and referred the case to a master for an accounting. This appeal…