delivered the opinion of the Court.
The question for decision is whether the owner of a process patent may by suit for contributory infringement suppress competition in the sale of unpatented material to be used in practicing the process.
The Barber Company brought, in the federal court for New Jersey, against the Leitch Manufacturing Company,
1
this suit to enjoin the alleged contributory in
The Barber Company and Leitch Manufacturing Company are competing manufacturers of bituminous emulsion — an unpatented staple article of commerce produced in the United States by many concerns and in common use by their customers for many purposes. By builders of macadam roads the emulsion has long been used as a coating for crushed stone and otherwise. With builders of cement concrete roads it has recently come into use for a film on the surface of the roadway to retard evaporation during curing. For the method of so retarding evaporation The Barber Company acquired the process patent sued on, and seeks to use it to secure a limited monopoly in the business of producing and selling the bituminous material for practicing and carrying out the patented method. The сompany does not itself engage in road building, or compete with road contractors. It does not seek to make road builders pay a royalty for employing the patented method. It does not grant to road builders a written license to use the process.
2
But it adopts a method of doing the business which is the prac
The District Court discussed, but found it unnecessary to рass upon, this defense, as it dismissed the bill on the ground that the patent was void.
That the patent did not confer upon The Barber Company the right to be free from competition in supplying unpatented material to be used in practicing the invention was settled by the rule declared in the
Carbice
case. That suit was likewise one to enjoin an alleged contributory infringer. The subject of the patent was a refrigerating transportation package in which the refrigerant to be used was solid carbon dioxide, or “dry ice.” The sole business of the Dry Ice Corporation was
“The Dry Ice Corporation has no right to be free from competitiоn in the sale of solid carbon dioxide. Control over the supply of such unpatented material is beyond the scope of the patentee’s monopoly; аnd this limitation, inherent in the patent grant, is not dependent upon the peculiar function or character of the unpatented material or on the way in which it is used. Rеlief is denied because the Dry Ice Corporation is attempting, without sanction of law, to employ the patent to secure a limited monopoly of unpatented material used in applying the invention.” (pp. 33-34.)
“In the case at bar the plaintiffs neither sell nor license others to sell complete transportation packages. They supply merely one of several materials entering into the combination; and on that commodity they have not been granted a monopоly. Their attempt to secure one cannot be sanctioned.” (pp. 34-35.)
The Barber Company contends that the rule of the
Carbice
case is' not applicable because it has not entered into any contraсt or agreement aimed at expansion of the patent monopoly. It argues that in the
Carbice
case, as in
Motion Picture Patents Co.
v.
Universal Film Mfg.
Co.,
The distinction upon which The Barber Company thus rests is without legal significance. The Court held in the
Carbice
case that the limitation upon the scope or use of the patent which it applied was “inherent in the patent grant.” It denied relief, not bеcause there was a contract or notice held to be inoperative, but on the broad ground that the owner of the patent monopoly, ignoring the limitatiоn “inherent in the patent grant,” sought by its method of doing business to extend the monopoly to unpatented material used in practicing the invention. By the rule there declared 'every use of a patent as a means of obtaining a limited monopoly of unpatented material is prohibited. It applies whether the patent be for а machine, a product, or a process. It applies whatever the nature of the device by which the owner of the patent seeks to effect such unаuthorized extension of the monopoly. Nothing in
Leeds & Catlin Co.
v.
Victor Talking Machine Co.,
Reversed.
Notes
The suit was begun by The Barber Asphalt Company, the then owner of the patent. During the pendency of the suit that corporation transferred the patent, together with all claims for damages and рrofits for past infringement and the right to sue therefor, to The Barber Company, Inc. Upon supplemental bill of complaint, it was substituted as plaintiff. The Stulz-Sickles Company, thе jobber through whom the sale was made, was a co-defendant throughout the proceedings below; but declined to join in the petition for certiorari.
No written licеnse had, so far as appears, been granted by The Barber Company to any one. Its predecessor, The Barber Asphalt Company (see note 1), had grantеd a written license to Johnson-March Corporation, which paid no royalty but bought from The Barber Asphalt Company “cutback material” for use in the East, and “Trinidad or Bermudez asphalt” for use in the West.
