A patent licensing agreement authorized the licensee to make,
use and sell brazing solder containing copper and phosphorus and
required him to pay royalties and not to sell the product at prices
lower than those charged by the licensor. After paying royalties on
this product and also on solders containing tin or silver in
addition to copper and phosphorus, the licensee obtained patents on
the solders containing tin and silver and refused to pay royalties
on them. The licensor sued in a state court for royalties. In his
answer, the licensee challenged the validity and coverage of the
licensor's patent, the validity of the price-fixing agreement, and
the validity of the licensor's exercise of its monopoly. He
counterclaimed for refund of the royalties paid and for damages on
account of the restraint imposed on him by the agreement.
Held:
1. In these circumstances, the licensee was not estopped to
challenge the validity of the licensor's patent.
Sola Electric
Co. v. Jefferson Electric Co., 317 U.
S. 173;
Scott Paper Co. v. Marcalu Mfg. Co.,
326 U. S. 249;
Katzinger Co. v. Chicago Metallic Co., ante p.
329 U. S. 394. P.
329 U. S.
407.
2. The covenant to pay royalties was not severable from the
price-fixing covenant.
Katzinger Co. v. Chicago Metallic Co.,
ante, p.
329 U. S. 394. P.
329 U. S.
407.
Page 329 U. S. 403
3. The licensee's challenge to the validity of the patent, its
alleged misuse, and the price-fixing covenant raised federal
questions not governed by state rules as to estoppel or contract
severability. P.
329 U. S.
407.
4. If the patent is invalid, the price-fixing agreement violates
the antitrust laws. P.
329 U. S.
407.
5. Since the case is remanded for a new trial, this Court all
not now pass on the validity of the patent, the licensing
agreement, or the licensor's alleged misuse of its patent. Pp.
329 U. S.
407-408.
352 Pa. 443, 43 A.2d 332, reversed.
In a suit brought by a licensor of a patent in a state court for
royalties under a licensing agreement, the licensee challenged the
validity of the patent, a price-fixing covenant in the agreement,
and the licensor's exercise of its monopoly, and counterclaimed for
refund of royalties already paid and for damages resulting from the
restraint imposed on him by the licensing agreement. The trial
court gave judgment for the licensor. The Supreme Court of
Pennsylvania affirmed. 352 Pa. 443, 43 A.2d 332. This Court granted
certiorari, 326 U.S. 708, affirmed the judgment below in a per
curiam decision by an equally divided Court, 327 U.S. 758, and
later granted a rehearing. 327 U.S. 812.
Reversed and
remanded, p.
329 U. S.
408.
MR. JUSTICE BLACK delivered the opinion of the Court.
This case, like that of
Edward Katzinger Co. v. Chicago
Metallic Mfg. Co., ante, p.
329 U. S. 394,
this day decided, involves
Page 329 U. S. 404
the right of a patent licensee to defend a suit for royalties
only under a licensing agreement which contains a price-fixing
provision. Certain subsidiary questions are also raised.
Westinghouse Electric & Manufacturing Company owned Jones'
Patent No. 1,651,709. The invention claimed was a brazing "solder
comprising copper and phosphorous as the main and essential
constituents." Westinghouse sued MacGregor for infringement. The
litigation was settled, and MacGregor took a license from
Westinghouse authorizing MacGregor to make, use, and sell solder
containing the constituents described in Westinghouse's patent
claim. MacGregor agreed to pay 10% royalties on the net selling
price of the solder. Sections 5 and 6 of the license agreement, set
out below, [
Footnote 1]
required MacGregor to sell the solder for no less than the price
Westinghouse
Page 329 U. S. 405
charged its own customers. MacGregor paid royalties on solder he
made and sold which contained only phosphorous and copper. Later,
he began to make and sell solders composed of phosphorous, copper,
and tin, or phosphorous, copper, and silver. For a time, he paid
royalties on these. But he also applied for and obtained patents on
these two latter solders which added tin and silver, respectively,
to the phosphorous-copper combination. [
Footnote 2] MacGregor then declined to pay royalties on
these solders on the ground that they were not covered by
Westinghouse's patent. Westinghouse brought this suit for an
accounting and payment of unpaid royalties in a Pennsylvania State
court. MacGregor filed an answer denying liability, and a
counterclaim. His answer asserted that the solders which were
described in his patents were not covered by Westinghouse's patent.
He alleged that the effort of Westinghouse to make him pay
royalties on these solders constituted an unlawful exercise of
Westinghouse's patent monopoly, and that Westinghouse should not be
allowed to recover in the courts for this reason. In a
counterclaim, he maintained that, by inadvertence and mistake, he
had paid royalties on solders covered by his own patents. He
charged that, if the Westinghouse patent should be construed to
cover these latter solders, it was invalid. He further contended
that the price-fixing provision was a violation of the Sherman Act
and the Clayton Act, and constituted an unlawful use of
Westinghouse's patent monopoly which rendered the whole license
agreement illegal. [
Footnote 3]
In his counterclaim, MacGregor asked not
Page 329 U. S. 406
only for judgment for refund of the royalties alleged to have
been inadvertently paid, but also for damages on account of the
illegal restraint imposed upon him by the agreement.
The State trial court declined to consider the validity of the
patent, holding that it was presumed to be valid and that
MacGregor, as a licensee, had no right to challenge it. Assuming
the patent and all the claims in it to be valid on this theory, the
State court found the claims broad enough in scope to cover all the
solders manufactured and sold by MacGregor. The trial court did not
give a like presumption to the validity of the patents issued to
MacGregor, but held that the solders covered by those patents
infringed the presumptively valid patents of Westinghouse.
[
Footnote 4] The State supreme
court affirmed. 350 Pa. 333, 38 A.2d 244. It agreed with the trial
court that MacGregor was estopped to attack the validity of
Westinghouse's patent. It recognized that there could be no
estoppel in the present case under our decision in
Sola
Electric Co. v. Jefferson Electric Co., 317 U.
S. 173, but for its interpretation of the
Sola
decision as applying only to suits in which the licensor
Page 329 U. S. 407
sought affirmative relief to enforce compliance with the
price-fixing provision. Since no such relief was asked in this
case, the State supreme court felt that there was no existing
controversy which involved the price-fixing provision -- that the
questions of their effect and validity were "moot." Thus, it
assumed, as did the petitioner in
Katzinger Co. v. Chicago
Metallic Mfg. Co., supra, that a royalty agreement was
severable from price-fixing covenants. For the reasons stated in
today's
Katzinger opinion, we hold that the covenant to
pay royalties was not severable from the covenant to sell at fixed
prices. Since MacGregor invoked federal law to sustain his
challenge to the validity of the patent, the alleged misuse of the
patent, and the price-fixing covenant, his contentions raised
federal questions not governed by state estoppel or contract
severability rules.
Sola Electric Co. v. Jefferson Electric
Co., supra, 317 U. S.
176-177;
Scott Paper Co. v. Marcalus Mfg. Co.,
326 U. S. 249.
Accordingly, we hold as a matter of federal law that the State
supreme court was wrong in affirming the judgment in this cause on
the ground that the licensee, MacGregor, was estopped to offer
proof of his allegation of invalidity. This error will require, as
the State court anticipated, that the cause be remanded for a new
trial to determine the validity of Westinghouse's patent. For we do
not think that the present state of this record justifies
acceptance of MacGregor's contention that we should now pass on
validity of the patent. If it be determined on remand that the
patent is invalid, there is no question but that, as MacGregor
contends, the price-fixing agreement violates the antitrust laws.
Katzinger Co. v. Chicago Metallic Mfg. Co., supra; Sola
Electric Co. v. Jefferson Electric Co., supra, at
317 U. S. 175;
Scott Paper Co. v. Marcalus Co., supra.
But there are alternative federal questions raised here by
MacGregor upon which decision might turn even
Page 329 U. S. 408
though Westinghouse's patent be held valid. MacGregor pleaded
that the price-fixing agreement so effectively wiped out all
competition to Westinghouse in the manufacture and sale of these
solders that the whole license contract should be held illegal as a
violation of the Sherman and Clayton Acts. MacGregor also contended
that the license contract should be held unenforceable in the
courts on the ground that Westinghouse had attempted to use it to
extend the patent's scope beyond its lawful coverage. But, since
the cause must again be tried in the State court, we shall not pass
on either of these contentions at this time.
The judgment is reversed, and the case remanded to the Supreme
Court of Pennsylvania for proceedings not inconsistent with this
opinion.
Reversed and remanded.
[
Footnote 1]
"5. Westinghouse grants this license on the express condition
that the prices, terms, and conditions of sale for use or sale in
the United States of America, its territories and possessions of
brazing solders embodying the invention covered by said Letters
Patent and so long as such brazing solders continue to be covered
by said patent, shall be no more favorable to the customer than
those which from time to time Westinghouse established and
maintains for its own sales of similar or competing brazing solders
under such patent to such or other similarly situated customer
purchasing in like quantities. MacGregor shall be notified of all
such prices, terms, and conditions of sale fixed by
Westinghouse."
"The prices, terms, and conditions of sale of Westinghouse may
be changed by Westinghouse from time to time, notice being given
MacGregor, but not less than five days' notice shall be given
before any such change shall go into effect."
"6. It is agreed that it shall be regarded as an evasion of this
agreement amounting to a breach thereof for MacGregor to reduce
Westinghouse's sale price or alter Westinghouse's selling terms and
conditions of sale directly or indirectly either through its own
organization, its agents, or others by any device, subterfuge, or
evasion, or by any means whatever, or to make the prices lower or
the terms or conditions more favorable than those set forth by
Westinghouse."
[
Footnote 2]
Copper, phosphorous and tin solder is Patent No. 2, 125,680;
Copper, phosphorous and silver solder is Patent No. 2, 162,627.
[
Footnote 3]
The agreement to fix prices, if unlawful at all, was so whether
it was executed or not.
United States v. Socony-Vacuum Oil
Co., 310 U. S. 150;
American Tobacco Co. v. United States, 328 U.
S. 781,
328 U. S. 810.
But this agreement by MacGregor to sell at fixed prices was no mere
token, for the trial court found that, on July 11, 1940,
Westinghouse called MacGregor's attention to his obligation to
observe user and distributor prices, and that, on October 23, 1940,
Westinghouse, through one of its attorneys, wrote MacGregor's
attorney that,
"if MacGregor sells direct to the user, he should conform to the
user prices established, and when he sells direct to the dealer, he
should conform to the dealer prices established."
The oral testimony of Westinghouse's representatives construed
the contract as requiring MacGregor to maintain the prices.
Moreover, the record before us shows that MacGregor positively
testified that he had maintained the Westinghouse prices on the
copper-phosphorous combination because he considered himself bound
to do so under the license contract.
[
Footnote 4]
Since the case is to be remanded for trial of the validity of
the patent, we find it unnecessary to consider the propriety, in
any event, of indulging a presumption of validity in favor of
Westinghouse's patent without giving a presumption of a patentable
difference to those of MacGregor.
See Miller v. Eagle
Manufacturing Co., 151 U. S. 186,
151 U. S.
208.
MR. JUSTICE FRANKFURTER, with whom concur MR. JUSTICE REED, MR.
JUSTICE JACKSON and MR. JUSTICE BURTON, dissenting.
*
The Court deems the issues in these cases to be controlled by
our decision in
Sola Electric Co. v. Jefferson Co.,
317 U. S. 173.
Such is not my understanding of the
Sola decision. These
cases cannot be property decided, I believe, without consideration
of one of the oldest doctrines of the patent law, namely, that a
licensee cannot challenge the validity of the patent though
everyone else may.
(1) Ninety years ago, this Court unanimously announced the
doctrine that a licensee under a patent is estopped from
challenging the validity of that patent.
Kinsman v.
Parkhurst, 18 How. 289. The case may perhaps be
explained, or even explained away. But the rule it expressed had
become so much part of our law that fifty
Page 329 U. S. 409
years later the Court deemed it unnecessary to discuss it and
unanimously applied it even against the United States as licensee.
United States v. Harvey Steel Co., 196 U.
S. 310. It is significant that the licensee in that
case, while vigorously contesting its liability upon the particular
facts, conceded that the doctrine of estoppel was law "as a general
proposition."
(2) Before those cases and since, in all English-speaking
jurisdictions, in the courts of England, of the Dominions and of
the various States, as well as in the lower federal courts, where
most patent litigation originates and stops, a weighty body of
cases affirmed and applied that doctrine with rare unanimity.
[
Footnote 2/1] This Court has never
questioned the rule. [
Footnote 2/2]
The principle has withstood judicial scrutiny for nearly a
century.
(3) Nor has the operation of the rule revealed inroads upon the
public interest so as to stir efforts for its abrogation or
restriction by Congress. Patent policy has been frequently
reconsidered, and some rules formulated by courts were eliminated
or modified. Yet in none of the four major patent statutes nor in
any of the other numerous amendatory enactments was attempt made to
abolish or limit estoppel in favor of the licensor. [
Footnote 2/3] The Patent
Page 329 U. S. 410
Office, charged by Congress with supervision of the patent
system and the source of many suggestion enacted into law, has
never included among its proposals recommendation to alter that
doctrine.
(4) Not until 1942, apparently, was legislative correction
invoked, and even then only partially. Several bills were
introduced to permit contest of the validity of a patent in
antitrust suits.
See S. 2730, Aug. 20, 1942; H.R. 7713,
Oct. 15, 1942; H.R. 109, Jan. 6, 1943; H.R. 1371, Jan. 20, 1943.
Only in the latest bills to be introduced is it proposed that,
"In any proceeding involving a violation of the antitrust laws
or involving a patent or any interest therein, a party shall be
entitled to show the invalidity or the limited scope of any patent
or patent rights involved."
H.R. 3874, Dec. 18, 1943; H.R. 97, Jan. 3, 1945; H.R. 3462, June
13, 1945; S. 2482, July 26, 1946. Not one of these bills has yet
reached the floor of Congress.
(5) If ever a doctrine has established itself as part of our law
to be respected by the judiciary, this is it. If it is to be
changed, Congress is there to change it. Perhaps Congress will see
fit to reexamine the doctrine in all its ramifications in the light
of its history and the experience under it, and with due regard to
all factors relevant to our patent system. We cannot do that. We
can only adhere to the doctrine or overrule it. Until Congress does
undo a principle so embedded in our law, we should leave it where
we find it.
(6) But in any event, if we are to wipe out so settled a phase
of our law, it should be done explicitly, not cryptically. In my
judgment, the
Sola decision does not give adequate support
for the Court's opinion. The cases before us necessarily involve
the estoppel doctrine, and cannot be disposed of without appearing
to overrule a settled course of decision.
Page 329 U. S. 411
(7) No doubt the
Sola case, like these two, arose out
of a claim for royalties under a patent license. But that there was
a claim for royalties was hardly mentioned in the Court's opinion
in the
Sola case. The sole issue to which our attention
was directed was a prayer that the licensee be enjoined from breach
of his promise to abide by the prices fixed by the licensor for the
sale of articles manufactured under the patent. Ever since the
decision in
Dr. Miles Medical Co. v. John D. Park & Sons
Co., 220 U. S. 373,
this Court, as a matter of judicial policy reflected in
legislation, has denied enforcement of agreements not to sell goods
below a fixed price. And so this Court has been on the alert not to
allow an exception to what is a congressional, as well as a
judicial, policy unless the basis for it is clean and clear.
The precise issue which we decided in the
Sola case is
not a matter for inference or conjecture. It was explicitly defined
and delimited. "The question for our decision," the late Chief
Justice wrote,
"is whether a patent licensee, by virtue of his license
agreement, is estopped to challenge a price-fixing clause in the
agreement by showing that the patent is invalid, and that the price
restriction is accordingly unlawful because not protected by the
patent monopoly."
317 U.S. at
317 U. S. 173.
That was the issue in the
Sola case. It was not whether a
licensee may challenge the validity of a patent when sued for
royalties. It was not whether a provision for price-fixing
undermined rights under estoppel against a licensee. It was whether
the licensor could show the special dispensation pertaining to the
holder of a valid patent, which entitles him to fix the price of a
commodity manufactured under his patent, although such a pricing
agreement would be unenforceable in the generality of cases. What
was sought and what was denied in
Sola was the active
benefit of a price-fixing clause.
Page 329 U. S. 412
(8) In the cases before us, price-fixing is not in issue.
[
Footnote 2/4] We are not asked to
allow the licensor to have the benefit of a practice available only
under a valid patent. To grant relief here will not, unlike the
Sola case, approve a
Page 329 U. S. 413
practice
prima facie in restraint of trade. What we
here have to decide is whether we shall allow the licensee to
repudiate an agreement for the payment of money made in an arm's
length transaction. For nearly a hundred years, this Court has
uniformly answered that question by using the legal shorthand of
estoppel.
(9) But if all the cases which have recognized and applied the
doctrine of estoppel have been reduced, as apparently they have
been, to derelicts, they should not be allowed to remain as
obstructions on the stream of law. And not merely out of regard for
the proper administration of law. The matter has practical
consequences for all whose concern is patents. It is not questioned
that a price-fixing clause in a license to manufacture under a
valid patent falls outside the interdict of the antitrust acts.
Bement v. National Harrow Co., 186 U. S.
70. [
Footnote 2/5] The
power to fix the price of patented articles is part of the patent
grant. It is a mode of maintaining the integrity of a patent, and,
as such, is sanctioned by public policy. All that the
Sola
case held, and the only thing it held, was that a valid patent is
indispensable to this right to fix prices.
But whether an inventor has a valid patent is a matter of
increasing uncertainty. Hitherto, under the estoppel
Page 329 U. S. 414
doctrine, a patentee could be assured that he would not have to
litigate the validity of his patent with those to whom he grants
license rights under it. Under the present decision, he cannot have
this assurance of freedom from litigation if, under reasonable
belief that he has a valid patent, he inserts a price-fixing clause
in the license, even though afterwards he merely asks for
royalties.
What matters is not merely that a patentee must now choose
between two safeguards of his patent grant. In the
Sola
case, the licensor asked for the enforcement of a pricing
agreement. Here, the price-fixing agreement is not brought into
question, and the patentee stands on his estoppel. This important
difference is disregarded, the
Sola case is deemed
controlling, and the estoppel is left to fend for itself as a legal
stray. By its silence, as by its reasoning in applying the
Sola case, the decision will engender natural doubts as to
the continuing validity of the estoppel doctrine even in those
cases where no pricing agreement had ever existed. The result is
that all future arrangements between licensor and licensee are
overhung by a cloud of doubt as to what one who believes that he
holds a valid patent should do in granting licenses under it.
If he insists on a price agreement to help maintain the
integrity of his business, he runs the risk of losing his
royalties, since the mere existence of the price-fixing clause
(which is all we have here) may find him entirely in the cold if it
should turn out that the patent is not sustained. So long as the
estoppel doctrine, as such, stands unrejected, the patentee may
therefore prefer to forgo price-fixing and be satisfied with the
bird in the hand in reliance on estoppel. But the upshot of the
present decision is that the Court creates an unfair uncertainty as
to the continued vitality of the historic estoppel doctrine. The
result is that the patentee who forgoes his right to maintain
prices in order to make certain that he can at
Page 329 U. S. 415
least collect his patent royalties without the cost and
uncertainty of litigation may find himself caught in the optimism
of his belief as to the vitality of the estoppel doctrine
unembarrassed by any price-fixing provision. For he may have given
up what he might otherwise assert as a patentee to make sure that
he can, in any event, have what estoppel would give him. It would
seem fair to pronounce now that the doctrine of estoppel has or has
not survived so that those who deem themselves holders of patent
rights might not suffer because they assumed that the Court would
preserve that which by no intimation it purports to jettison.
(10) The problem before the Court can be treated as though it
was the same as that in the
Sola case only if a
distinction with a difference makes no difference. It is one thing
to refuse to enforce a contract restraining trade by price-fixing
unless positive justification is shown in the form of a valid
patent. It is quite another to use the excuse of an inoperative
price-fixing clause to allow a licensee to escape his otherwise
valid promise to pay royalties. [
Footnote 2/6] Nowhere in the
Sola case did the
Court intimate that the decision rested upon the importance to the
public economy of allowing challenge to the validity of a patent by
those particular members of the public who, in a fair bargain, had
agreed not to do so. In fact, the doctrine of estoppel, flowing
from
Kinsman v. Parkhurst and applied in
United States
v. Harvey Steel Co., was explicitly noted
Page 329 U. S. 416
only to be put to one side because "here, a different question
is presented." 317 U.S. at
317 U. S. 175. It was again put aside in
Altvater v.
Freeman, 319 U. S. 359,
319 U. S. 364.
[
Footnote 2/7] The question which
those cases did not have to meet should now be met otherwise than
by disregard. The Court's essential reasoning would apply equally
where the license never attempted to fix prices. If a doctrine that
was vital law for more than ninety years will be found to have now
been deprived of life, we ought at least to give it decent public
burial.
* [This is also a dissent from the decision in
Katzinger Co.
v. Chicago Metallic Co., ante, p.
329 U. S.
394.]
[
Footnote 2/1]
The early cases are collected in 14 Ann.Cas. 1184. Note also the
unanimity among the authors of treatises. Amdur, Patent Law and
Practice 598; Ellis, Patent Assignments and Licenses § 692
et
seq.; 2 Frost, Patent Law and Practice 201; Moulton, Patents
244; Rivise and Caesar, Patentability and Validity § 10; 2
Robinson, Patents § 820; 2 Walker, Patents (Deller's ed.) § 383.
And see the cases cited, especially in Walker, Patents,
supra.
[
Footnote 2/2]
Cf. 78 U. S. v. Bailey
Co., 11 Wall. 488,
78 U. S. 492;
Eclipse Bicycle Co. v. Farrow, 199 U.
S. 581,
199 U. S.
587.
[
Footnote 2/3]
See Patent Act of 1790, 1 Stat. 109; Patent Act of
1793, 1 Stat. 318; Patent Act of 1836, 5 Stat. 117; Patent Act of
1870, 16 Stat. 198.
See also the subsequent minor
enactments, summarized, J.Pat.Off.Soc., July 1936, pp. 103-22.
And see 1 Walker, Patents (Deller's ed.) Appendix.
[
Footnote 2/4]
"In the instant case, the court has not been requested either
directly or indirectly to require MacGregor to maintain
Westinghouse prices. By his own testimony, he has not maintained
them. The price-fixing clause is not in issue. It is raised merely
as a defense to a suit for accounting and payment of accrued
royalties."
Discussion of findings by trial court in the
MacGregor
case.
As to the
Katzinger case, the District Court opinion
found that
"no price-fixing by the respondent has been proved by the
petitioner. . . . At no time did the respondent attempt to carry it
out, and the respondent was at all times willing to have same
removed from the contract."
Further, a specific finding of fact was that
"Respondent was always willing to eliminate the price-fixing
provisions of the license agreement, and these provisions
terminated
ipso facto upon termination of the license by
petitioner."
It was on the basis of the facts so found by the District Court
that the Circuit Court of Appeals held, when the estoppel issue was
before it, that the mere presence of a price-fixing clause in the
licensing agreement, whatever its setting and however inoperative,
precluded estoppel against the licensee. 139 F.2d 291. With the
estoppel issue thus eliminated, the case was returned to the
District Court to pass on the validity of the patent. Inasmuch as
the Circuit Court of Appeals had found that the District Court had
erred in its decree enforcing estoppel, the previous findings
regarding estoppel became irrelevant, and fell with the reversed
decree. These findings, however, did not cease to be part of the
record before the Circuit Court of Appeals on the first appeal. It
is that decision, with the record on which it is based, that is now
before us. If the Circuit Court of Appeals had enforced estoppel,
the decree of the District Court and the findings on which it is
based would not have been vacated. The findings that were before
the Circuit Court of Appeals on the first appeal are now before us
on review of that court's decision.
The license agreement provided for royalties based on a
percentage of the net sales. The amount of the net sales was not
fixed by agreement except insofar as certain scheduled articles
called for a minimum price. The record does not show the prices at
which the sales were made. Not only that, the claim of the licensee
was that the articles for which royalties were claimed were outside
the license. Plainly such articles were not included on the minimum
price schedule, and could not have been sold according to the
scheduled price list. The claim for royalties therefore was not a
claim for royalties at fixed prices.
[
Footnote 2/5]
Upon full consideration, the principle of the
Bement
case was reaffirmed and applied in
United States v. General
Electric Co., 272 U. S. 476. The
latter case, in turn, was cited with approval in
Carbice Corp.
of America v. American Patents Corp., 283 U. S.
27,
283 U. S. 31. It
is relevant to note that Mr. Justice Brandeis joined in the
General Electric opinion, and himself wrote the
Carbice opinion. No member of this Court has been more
resourcefully alert to protect the public interest from undue
extension of the patent monopoly, while at the same time observing
the rights which Congress has seen fit to confer by the patent
grant.
[
Footnote 2/6]
The considerations that determine the granting of a license on
payment of royalties are distinct from those that underlie an
additional clause for price-fixing. They are not interdependent in
fact, and were not so treated by the parties; no artificial notion
regarding consideration requires that they be treated as
interdependent. On lesser considerations of policy than have guided
the course of patent law, this Court has refused to treat separate
provisions of a contract as integrated.
See
Philadelphia,
Wilmington & Baltimore Railroad Co. v. Howard,
13 How. 307,
54 U. S. 339;
Pollak v. Brush Electric Association, 128 U.
S. 446,
128 U. S.
455
[
Footnote 2/7]
Scott Paper Co. v. Marcalus Mfg. Co., 326 U.
S. 249, went on the ground that an earlier expired
patent had put the device in question into the public domain.