1. All of the claims of Jungersen Patent No. 2, 118,468, for a
"method of casting articles of intricate design and a product
thereof,"
held invalid for want of invention. Pp.
335 U. S.
561-568.
2. An examination of the prior art as it existed at the time of
this alleged invention reveals that every step in the Jungersen
method was anticipated, and it appears that Jungersen's combination
of these steps was, in its essential features, also well known in
the art. Pp.
335 U. S.
563-564.
3. Where centrifugal force was common as a means of introducing
molten metal into a secondary mould, its use in an intermediate
step to force molten wax into a primary mould was not an
exemplification of inventive genius such as is necessary to render
a patent valid. Pp.
335 U. S.
564-567.
4. It is not sufficient to say that jewelry casting is a
separate and distinct art where the patent is not restricted to the
casting of jewelry and the prior improvements in the art of casting
were so obviously applicable to the casting of jewelry that the
patentee was bound by knowledge of them. P.
335 U. S.
567.
5. Where invention is plainly lacking, the fact that a process
has enjoyed considerable commercial success does not render a
patent on it valid. Pp.
335 U. S.
567-568.
163 F.2d 312, affirmed in part and reversed in part.
166 F.2d 807, affirmed.
Nos. 7 and 8. In a suit for a declaratory judgment that a patent
was invalid and not infringed, defendant counterclaimed, alleging
infringement and seeking an injunction. The District Court held
certain claims valid but not
Page 335 U. S. 561
infringed, and certain other claims invalid.
65 F. Supp.
652. The Court of Appeals affirmed. 163 F.2d 312. This Court
denied petitions of both parties for certiorari, 332 U.S. 851-852,
but, after a conflicting decision in another circuit in No. 48,
vacated those orders and granted certiorari. 334 U.S. 835. No. 7
affirmed, and No. 8
reversed, p.
335 U. S.
568.
No. 48. In a suit for damages, profits, and injunctive relief
for alleged infringement of a patent, the District Court held all
claims of the patent invalid.
69 F. Supp.
922. The Court of Appeals affirmed. 166 F.2d 807. This Court
granted certiorari. 334 U.S. 835.
Affirmed, p.
335 U. S.
568.
MR. JUSTICE REED delivered the opinion of the Court.
The issue here is the validity of United States Patent No.
2,118,468 which covers a "method of casting articles of intricate
design, and a product thereof."
The patent was granted to Jungersen on May 24, 1938. In 1941,
Ostby and Barton Company instituted in the United States District
Court for the District of New Jersey an action for a declaratory
judgment that the patent was invalid and not infringed. Jungersen,
by counterclaim, alleged infringement and sought an injunction. The
District Court held Claims 1-4 valid but not infringed, and Claims
5-6 invalid because too broad.
65 F. Supp.
652. The United States Court of Appeals for the Third Circuit
affirmed on the reasoning of the District
Page 335 U. S. 562
Court. 163 F.2d 312. We denied petitions by both parties for
certiorari. 332 U.S. 851, 852.
In 1944, Jungersen filed suit against Baden in the United States
District Court for the Southern District of New York in which he
alleged infringement of the patent and sought damages, profits, and
injunctive relief. That court held all the claims invalid.
69 F. Supp.
922. The United States Court of Appeals for the Second Circuit
affirmed. 166 F.2d 807.
Vacating the prior orders which denied it in the
Ostby
and
Barton proceeding, we granted certiorari in both cases
in order to settle the conflict. 334 U.S. 835. [
Footnote 1] Since the parties do not assert error
in those portions of the lower courts' decisions which concern
infringement, the sole issue before us is the validity of the
patent.
The method described in the Jungersen patent, Claims 1-4,
consists of the following steps: (1) The production of a model of
the article to be cast, (2) the formation around this model of a
"primary mould" of plastic material "such as rubber" which is
"capable of assuming intimate contact with the intricate designs of
the model" and which will "retain a lasting shape through
subsequent treatment,"(3) the casting in this mould of a pattern
consisting of molten wax or other material of a low melting point
which is made to assume the minute configurations of the mould by
means of centrifugal force, (4) the removal of this pattern (which
has become solid upon cooling) from the primary mould, and the
formation around it of a "secondary mould" of refractory material,
such as plaster of Paris, which "will assume all the contours of
its intricate design," (5) the removal
Page 335 U. S. 563
of the wax or similar material from the secondary mould, or
"investment" as it is called, by the application of heat, thus
melting it out, and, finally, (6) the casting of the desired molten
metal into the cavity in the investment by the application of
centrifugal force, as in (3) above.
This method is capable of producing
"small metal articles, particularly articles of intricate detail
such as jewelry which frequently are designed with hollows,
undercut portions, and perforations, so that they will have a
smooth, clean surface faithful in detail to the original and free
from imperfections or holes, and to enable such result's being
accomplished with the minimum of expense."
The patentee claims that it made possible the accurate
reproduction of intricate designs in far less time than had
previously been required.
Claim 5 describes in more general terms the formation of a
primary mould around the original pattern, the removal of the
pattern from the mould, the introduction of molten wax into the
mould "by force sufficient to deposit the material into the
depression or depressions of the primary mould," and the employment
of the wax pattern for the manufacture of a casting mould. Claim 6
covers "an article of jewelry" of intricate design made by the
process disclosed by Claim 5. It describes the article of jewelry
only by reference to the process by which it is manufactured.
Obviously, if the first four claims are invalid, the last two must
likewise fall.
An examination of the prior art as it existed at the time of
this alleged invention reveals that every step in the Jungersen
method was anticipated. We think that his combination of these
steps was, in its essential features, also well known in the
art.
Jungersen's process is nothing more than a refinement of a
method known as the "
cire perdue" or "lost wax" process,
which was in use as early as the sixteenth century. [
Footnote 2]
Page 335 U. S. 564
The Treatises of Benvenuto Cellini on Goldsmithing and
Sculpture, pp. 87-89, reveals a process which consists of filling a
primary mould with molten wax, building a secondary mould around
the wax model thus obtained, melting the wax from this mould, and
pouring the desired metal in the secondary mould. In 1904, United
States Patent No. 748,996, issued the Spencer, described a
substantially identical process in which the primary mould was
made, as in the patent here involved, by vulcanizing rubber around
the original model or pattern. In England, a process similar to
Spencer's had been the basis of a patent issued to Haseltine in
1875. [
Footnote 3]
The above-described developments in the prior art suggested no
limitation of their applicability to any particular type of
casting. Spencer stated that the purpose of his process was to
produce accurate replicas of the original pattern, which could be
of "intricate form" and which could "have any number of sides or
surfaces or undercut or projecting parts." Haseltine described his
object as the production of
"a casting in metal from a given pattern, which casting will be
a perfect copy of such pattern without requiring much, if any,
after finishing or chiseling work."
The patentee claims that the invention in his combination lies
in the use, in conjunction with the "lost wax" process, of
centrifugal force. Long before the issuance of this patent,
however, those skilled in the art recognized and disclosed the
necessity for the application of force in order to make molten
materials fit snugly the
Page 335 U. S. 565
intricate details of the mould. Haseltine applied pressure of
about twenty pounds per square inch to cause the molten metal "to
lie to the dense mould and produce a sharp and well defined
casting." He accomplished this by introducing the metal into the
mould through a pipe about six feet in height. [
Footnote 4] United States Patent No. 1,238,789
issued to Kralund in 1917 teaches the application of pressure to
the wax and the molten metal by means of an ordinary pressure die
casting apparatus.
Whether these types of pressure are the equivalent of
centrifugal force we need not decide, since it is evident from
patents and publications that the use of the latter was well known
in the art. In 1923, McManus patented a casting machine which was
adapted
"to the casting of jewelry, such as gold rings, small trinkets,
etc., where metal or other dies or moulds may be . . . filled by
centrifugal casting methods."
United States Patent No. 1,457,040. He claimed
"a means for transferring fused material from the furnace [in
which the material was melted] to the mould under the action of
centrifugal force."
In a paper on current casting methods which he presented to the
Institute of Metals in England in 1926, one George Mortimer, with
reference to the difficulty in filling a mould by gravity,
stated:
"It was natural, therefore, that engineers should early turn
their attention to some form of artificial pressure whereby the
mould could be filled by force, and soundness and clean definition
seemingly assured."
"The simplest form of artificial pressure is that of centrifugal
force. . . . [
Footnote 5] "
Page 335 U. S. 566
Centrifugal force was commonly used in dental casting prior to
1938. [
Footnote 6]
Thus, it is clear that the "lost wax" process, the use of a
flexible primary mould, and the use of centrifugal force were all
old in the art of casting. The patentee claims that the centrifugal
forcing of wax into the primary mould had never before been
combined with the other features of his process. We think this fact
is of no legal significance. Where centrifugal force was common as
a means of introducing molten metal into the secondary mould, its
use in an intermediate step to force molten wax into the primary
mould was not an exemplification of inventive genius such as is
necessary to render the patent valid.
Cf. Lincoln Engineering
Co. v. Stewart-Warner Corp., 303 U. S. 545;
Cuno Engineering Corp. v. Automatic Devices Corp.,
314 U. S. 84. The
patentee himself admitted that the same principle was employed in
both steps. [
Footnote 7] Thus,
Jungersen employed in his claimed invention well known skills and
practices in a manner and
Page 335 U. S. 567
for a purpose long familiar in the field of casting. His claimed
improvement is therefore not patentable.
The patentee contends, however, that jewelry casting is a
separate and distinct art; that, consequently, the advancements in
other types of casting mentioned above cannot be viewed as the
prior art in reference to this patent. The answer to this is
two-fold. In the first place, this patent is not restricted to the
casting of jewelry. Its stated object is to "facilitate the casting
of small metal articles, particularly articles of intricate detail
such as jewelry. . . ." Secondly we think that the improvements in
the art of casting which were disclosed by the patents and
publications discussed above were so obviously applicable to the
type of casting sought to be effected by Jungersen that he was
bound by knowledge of them.
Mandel Bros. v. Wallace,
335 U. S. 291,
335 U. S.
295-296.
Numerous licenses under the patent were issued in the United
States and other countries. The fact that this process has enjoyed
considerable commercial success, however, does not render the
patent valid. It is true that, in cases where the question of
patentable invention is a close one, such success has weight in
tipping the scales of judgment toward patentability.
Goodyear
Tire & Rubber Co. v. Ray-O-Vac. Co., 321 U.
S. 275,
321 U. S. 279,
and cases cited in
footnote 5
thereof Where, as here, however, invention is plainly lacking,
commercial success cannot fill the void.
Dow Chemical Co. v.
Halliburton Oil Well Cementing Co., 324 U.
S. 320,
324 U. S. 330;
Toledo Pressed Steel Co. v. Standard Parts, Inc.,
307 U. S. 350,
307 U. S.
356-357;
Textile Machine Works v. Louis Hirsch
Textile Machines, 302 U. S. 490,
302 U. S.
498-499; 1 Walker, Patents (Deller, 1937) § 44. Little
profit would come from detailed examination of the cases cited
above or those indicated by reference. Commercial success is really
a makeweight where the patentability question is close.
Page 335 U. S. 568
Increased popular demand for jewelry or alertness in
exploitation of the process may well have played an important part
in the wide use of the patent. We cannot attribute Jungersen's
success solely or even largely to the novelty of his process.
We hold all the claims of the patent invalid for want of
invention.
Nos. 7 and 48
affirmed.
No. 8
reversed.
* Together with No. 8,
Ostby & Barton Co. et al. v.
Jungersen, on certiorari to the United States Court of Appeals
for the Third Circuit, and No. 48,
Jungersen v. Baden et
al., on certiorari to the United States Court of Appeals for
the Second Circuit.
[
Footnote 1]
In No. 7, we are asked to consider the decision of the Court of
Appeals for the Third Circuit as to claims 5 and 6, in No. 8, the
decision of that court as to claims 1 through 4, and in No. 48, the
decision of the Court of Appeals for the Second Circuit as to all
the claims of the patent.
[
Footnote 2]
20 Encyclopaedia Britannica (1948), p. 229.
[
Footnote 3]
British Patent No. 2467.
A French publication by Verleye entitled "La Gravure, etc."
(1924) describes in detail all of the elements of Jungersen's
process except the use of centrifugal force.
[
Footnote 4]
"La Gravure, etc.,"
supra, note 3 advocates the use of steam pressure.
[
Footnote 5]
35 Journal of the Institute of Metals, 371, 377.
[
Footnote 6]
"Dental casting methods employ four distinct principles; namely,
gravity, centrifugal, vacuum, and pressure. . . ."
"The centrifugal method has the advantage of great simplicity,
and fills the mold by the force exerted in throwing the metal off
on a tangent while being revolved about a center."
Stern, Diecasting Practice (1st ed., 1930), p. 10.
[
Footnote 7]
An excerpt from the testimony follows:
"Q. And when the machine is revolved, when it is centrifuged, it
makes no difference whether it be molten wax or molten metal, does
it, in the fact that it throws out the molten material into the
gate?"
"A. It would throw out anything of weight if it is made free to
leave."
"Q. And that applies to wax as well as metal, does it not?"
"A. It applies to wax and metal, but in a greater amount to the
metal than to the wax."
"Q. But they both operate in the same way under the influence of
the centrifugal machine?"
"A. The same principle is used, yes."
"Q. And the molten material in both cases is introduced into the
mold?"
"A. Yes."
MR. JUSTICE FRANKFURTER, with whom MR. JUSTICE BURTON joins,
dissenting.
This is not one of those patent controversies that carry serious
consequences for an important industry, and thereby for the general
public. The case does, however, raise basic issues regarding the
judiciary's role in our existing patent system. These issues were
stated by Judge Learned Hand when the litigation was before the
Court of Appeals for the Second Circuit. Since this Court's opinion
has not, to my mind, met the questions which he raised, and since I
cannot improve upon what Judge Learned Hand wrote, I adopt his
opinion as mine.
"In Jungersen's British patent, as my brothers truly say, he
based his invention solely upon forcing the wax and the metal into
completely intimate contact with every crevice of the mould, and
for this he disclosed a centrifuge as the means. Moreover, it had
already been known by other moulders of fine patterns that the
metal might not fill all the spaces necessary for perfect
reproduction. For example, in 1873, Haseltine disclosed a device
which set up a pressure of twenty pounds to the square inch, and
this too in a 'lost wax' process. True, he did not disclose using
similar pressure for the wax, and he did not use a centrifuge, but
McManus used a centrifuge
Page 335 U. S. 569
to force fusible metal into all the crevices of the mould, and
that too in a 'lost wax' process, the knowledge of which he appears
to have assumed, for he does not disclose how to make the wax
model. Kralund also showed a pressure die-casting process, as
applied to the 'lost wax' method, and he used pressure to force his
wax into intimate connection with the first die as well as upon the
molten metal of the final casting; but his original die was of
steel, and he does not describe its manufacture."
"Nevertheless, in spite of all these approaches, and of the fact
that all the elements of the disclosure were to be found in the
prior art, it remains true that Jungersen's process, in its
entirety, had never been assembled before; no one had ever thought
of combining all those steps in a single sequence. True, had the
combination not been new in this objective sense, it could not have
been patented merely by turning it to a new use, and that would
have been so although it might have taken as much originality to
see that it could be put to the new use as it takes to make an
outstanding invention. It would have been a final answer that
Congress has never seen fit to extend its constitutional power to
'discoveries' as such, and has limited patents to an 'art, machine,
manufacture, or composition of matter,' [
Footnote 2/1] as we have often said -- the last time in
Old Town Ribbon & Carbon Co., Inc. v. Columbia Ribbon &
Carbon Manufacturing Co. [
Footnote
2/2] My point is that, if there is a new combination, however
trifling the physical change may be, nothing more is required than
that, to take the step or steps, added 'invention,' is needed, and
'invention,' whatever else it may be, is within
Page 335 U. S. 570
the category of mental activities, and of those alone. In the
case at bar, the answer must therefore depend upon how we shall
appraise the departure from what had gone before in terms of
creative imagination; indeed, I do not understand what other test
could be relevant."
"If that be the test, I submit that Jungersen's process meets
it. From time immemorial, jewelry had been manufactured by the
earlier processes, so that the need, if need there was, had existed
for years. Moreover, two of those earlier processes -- 'cuttlefish
casting and sand casting' -- have now become 'of little commercial
significance;' 'die-stamping' and Jungersen's process 'are the only
substantial methods now commercially used;' and, in the manufacture
of a hundred rings or less 'die-stamping' is more expensive. Had
some technological advance held up the change, and had Jungersen
made it only a short time after the obstacle had been removed, I
should agree that the inference of outstanding originality would
have been greatly weakened; but that was not the fact. Indeed, it
is the very basis of the defence that, for years, all the elements
lay open and available, and that nothing was needed but the paltry
modification which has proved so fruitful. To that I make the
answer on which courts in the past used to ring the changes with
wearisome iteration. If all the information was at hand, why was
the new combination so long delayed? What better test of invention
can one ask than the detection of that which others had all along
had a strong incentive to discover, but had failed to see, though
all the while it lay beneath their eyes? True, the whole approach
to the subject has suffered a shift within the last decade or so,
which I recognize that
Page 335 U. S. 571
we should accept as authoritative. Moreover, I am not aware of
the slightest bias in favor of the present system; I should accept
with equanimity a new system or no system. However, I confess
myself baffled to know how to proceed if we are at once to profess
to apply the system as it is and yet, in every concrete instance,
we are to decide as though it did not exist as it is. In the cast
at bar, I can only say that, so far as I have been able to
comprehend those factors which have been held to determine
invention, and to which at least lipservice continues to be paid,
the combination in suit has every hallmark of a valid patent."
Judge Hand's opinion is reported at 166 F.2d 811.
[
Footnote 2/1]
§ 31, Title 35 U.S.C.
[
Footnote 2/2]
159 F.2d 379, 382.
MR. JUSTICE JACKSON, dissenting.
I think this patent meets the patent statute's every
requirement. And, confronted by this record, an industry heretofore
galled by futility and frustration may well be amazed at the
Court's dismissal of Jungersen's ingenious and successful
efforts.
Of course commercial success will not fill any void in an
invalid patent. But it may fill the void in our understanding of
what the invention has meant to those whose livelihood, unlike our
own, depends upon their knowledge of the art. Concededly, in this
high-pressure age, sales volume may reflect only powerful promotion
or marketing magic, and its significance as an index of novelty or
utility may rightly be suspected. But Jungersen's success was
grounded not in the gullibility of the public, but in the
hard-headed judgment of a highly competitive and critical, if not
hostile, industry. Knowing well its need for and its failure to
achieve improvements on available processes, that industry
discarded them, adopted this outsider's invention, and made it a
commercial success.
Page 335 U. S. 572
It would take a singular self-assurance on the part of one who
knows as little of this art as I do, or as I can learn in the few
hours that can be given to consideration of this case, to ignore
the judgment of these competitors who grew up in the industry and
say that they did not know something new and useful when they saw
it. And if Benvenuto Cellini's age-old writings are so revealing to
us laymen of the appellate Bench, it is hard to see why this
practical-minded industry which the Court says was following
Cellini failed through all the years to get his message.
It would not be difficult to cite many instances of patents that
have been granted, improperly I think, and without adequate tests
of invention by the Patent Office. But I doubt that the remedy for
such Patent Office passion for granting patents is an equally
strong passion in this Court for striking them down, so that the
only patent that is valid is one which this Court has not been able
to get its hands on.
I agree with the opinion of Judge Learned Hand below.