The Philad Company, owner of a patent on a process for imparting a permanent wave to the hair, patent to Mayer, reissue 18,841, brought suits for infringement against four concerns. The charge was that the defendants were guilty of contributory infringement, in that they sold appliances designed for use in waving hair by the patented process, with knowledge that purchasers were to use the appliances in waving hair by that process. The cases were tried together. The defendants conceded that the appliances sold by them (clamps, curling rods, pads and heaters) were of shapes and sizes that fitted them for use in operating the patented process and were sold with knowledge that customers would use them in waving hair by that process. The trial judge dismissed the complaints without passing on the validity of the patent. He held that the Philad Company was attempting to use the process patent to control unpatented materials and was consequently not entitled to relief.
The Philad Company does not use the patented process, nor does it collect royalties from hair dressers for use of the process. What it does do is to issue licenses to some sixteen concerns which manufacture hair waving equipment, with authority to sublicense the process to purchasers of equipment. The licenses fix minimum selling prices for the various articles of equipment and give the Philad Company royalties based on such prices. The manufacturing concerns sell the equipment to hair dressers, in effect sublicensing them to use the patented process with the equipment. The defendants are competitors of the licensed manufacturers in the sale of hair dressing apparatus. As already stated, their apparatus is suitable for use in carrying on the patented process and is in fact so used, to the knowledge *748 of the defendants. The apparatus, however, is not within the patent sued on. The Philad Company issues warnings to the trade to buy equipment only from its licensees, on pain of being sued for infringement of the process patent. It has brought numerous suits for contributory infringement against jobbers who handle equipment not made by the licensed manufacturers, as in the present cases; but it does not sue hair dressers for direct infringement. By agreement with the licensees the number of licenses to be issued is not to exceed, eighteen.
The foregoing facts bring the present cases within Carbice Corporation v. American Patents Development Corp.,
Obviously these decisions present an important limitation on the doctrine of contributory infringement as formerly understood. The limitation was forecast as early as 1917 by Motion Picture Patents Co. v. Universal Film Mfg. Co.,
It is urged that the rule of the Carbice case covers only an effort of a patentee to control the use of staple materials, carbon dioxide in the Carbice case, bituminous emulsion in the Leitch case, and that the hair waving devices in the present cases are not staples. There is no support for any such limitation on the rule. In both the Carbice case and the Leitch case the emphasis was on the fact that the articles handled by the alleged contributory infringers were not covered by the patent, and on the further fact that the patentee by his method of doing business was using his patent as if it did cover such articles. Another asserted distinction is that the Philad Company has patents on the appliances as well as on the process and that the manufacturers are licensed under such patents. The suits are not for infringement of any such patents, and for present *749 purposes the appliances are to be taken as unpatented. If the plaintiff believes that the appliances sold by the defendants are direct infringements of product patents owned by it, it may test its rights by suit for ordinary infringement of those patents.
The trial judge was right in dismissing the suits, on the ground • stated by him. The decrees will be affirmed.
