1. The owner of a patent for a process for curing concrete by
the use of a spray of bituminous emulsion, an unpatented article of
commerce, cannot enjoin as a contributory infringer a competing
manufacturer who sold bituminous emulsion to a road contractor who
used it in practicing the patented method. Pp.
302 U. S. 460,
302 U. S.
463.
Page 302 U. S. 459
2. A patent may not be used as a means of obtaining a limited
monopoly of unpatented material.
Carbice Corp. v American
Patents Corp., 283 U. S. 27. P.
302 U. S.
463.
3. The rule of the
Carbice case,
supra, is
applicable whether the patent be for a machine, a product, or a
process, and whatever the nature of the device by which the owner
of the patent seeks to effect such unauthorized extension of the
monopoly. P.
302 U. S.
463.
89 F.2d 960 reversed.
Certiorari,
post, p. 673, to review a decree which,
upon appeal from a decree dismissing the bill in a suit for
contributory infringement of a patent, 14 F. Supp. 212, directed
the District Court to enter a decree adjudging the claims in issue
valid and infringed and awarding an accounting.
MR. JUSTICE BRANDEIS 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, [
Footnote 1] this suit to enjoin the alleged
contributory infringement
Page 302 U. S. 460
of patent No. 1,684,671, dated September 18, 1928, by selling
and delivering bituminous emulsion to a road builder, knowing that
it was to be used in Newark in accordance with the method defined
in the claims of the patent. Besides denying the validity of the
patent, this further defense was interposed. It was insisted that
the suit could not be maintained, even if the patent were valid,
because to do so would give a limited monopoly of an unpatented
staple article of commerce. The following facts were proved or
admitted.
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
company does not itself engage in roadbuilding or compete with road
contractors. It does not seek to make roadbuilders pay a royalty
for employing the patented method. It does not grant to
roadbuilders a written license to use the process. [
Footnote 2] But it adopts a method of doing
the business which is the practical
Page 302 U. S. 461
equivalent of granting a written license with a condition that
the patented method may be practiced only with emulsion purchased
from it. For any roadbuilder can buy emulsion from it for that
purpose, and, whenever such a sale is made, the law implies
authority to practice the invention. On the other hand, the Barber
Company sues as contributory infringer a competing manufacturer of
this unpatented material who sells it to a roadbuilder for such
use. Thus, the sole purpose to which the patent is put is thereby
to suppress competition in the production and sale of staple
unpatented material for this use in roadbuilding.
The District Court discussed, but found it unnecessary to pass
upon, this defense, as it dismissed the bill on the ground that the
patent was void.
Barber Asphalt Co. v. Stulz-Sickles Co.,
14 F. Supp. 212. The Court of Appeals sustained the validity of the
patent, concluded that there was contributory infringement, held
that maintenance of the suit was not forbidden by the rule declared
in
Carbice Corp. v. American Patents Development Corp.,
283 U. S. 27, and
directed that the District Court enter a decree adjudging the
claims in issue valid and infringed and awarding an accounting. 89
F.2d 960. One judge dissented on the ground that the decree
dismissing the bill should have been affirmed under the rule
declared in the
Carbice case. A petition for certiorari
limited to that question was applied for and granted,
Leitch
Mfg. Co. v. Barber Co., 302 U.S. 673.
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
Page 302 U. S. 462
to make and sell dry ice, which is unpatented material. It did
not make or sell transportation packages in which dry ice was used
as a refrigerant. It did not issue to other concerns licenses to
make such packages upon payment of a stipulated royalty. It did not
formally license buyers of its dry ice to use the invention in
suit. But each invoice for dry ice bore a notice in effect that the
patented container could be used only with dry ice purchased from
the corporation. In declaring that relief must be denied, the Court
said:
"The Dry Ice Corporation has no right to be free from
competition in the sale of solid carbon dioxide. Control over the
supply of such unpatented material is beyond the scope of the
patentee's monopoly, and 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. Relief
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.
283 U. S.
33-34.
"In the case at bar, the plaintiffs neither sell nor license
others to sell complete transportation packages. They supply merely
one of the several materials entering into the combination, and on
that commodity they have not been granted a monopoly. Their attempt
to secure one cannot be sanctioned."
Pp.
283 U. S.
34-35.
The Barber Company contends that the rule of the
Carbice case is not applicable, because it has not entered
into any contract 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.,
243 U. S. 502, the
attempt to secure the "partial monopoly of an unpatented material,
outside of and apart from the patent monopoly" was made by contract
or notice, whereas the Barber Company has made no attempt,
Page 302 U. S. 463
"by contract, notice or otherwise, to expand its patent monopoly
by limitations, or to reserve or create any monopoly in emulsion
outside of, and apart from, its patent monopoly,"
that "its customers for emulsion have no more than the
unconditional license to use implied by law and are under no
restriction," and that neither the defendant nor its customers "has
any relation with the patent owner."
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
because there was a contract or notice held to be inoperative, but
on the broad ground that the owner of the patent monopoly, ignoring
the limitation "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 a 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 unauthorized extension of the monopoly. Nothing in
Leeds & Catlin Co. v. Victor Talking Machine Co.,
213 U. S. 325,
limits it.
Reversed.
MR. JUSTICE CARDOZO took no part in the consideration or
decision of the case.
[
Footnote 1]
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
profits 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, the jobber
through whom the sale was made, was a codefendant throughout the
proceedings below, but declined to join in the petition for
certiorari.
[
Footnote 2]