The following patents,
viz., No. 538,809, of May 7,
1895, No. 691,332, of January 14, 1902, and No. 721,644, of
February 24, 1903, all granted to one Wolhaupter for alleged new
and useful improvements in railroad tie plates, are here examined
in respect of certain of their claims in comparison with the prior
art, and are
held invalid for want of novelty and
invention.
Flanges and teeth projecting from the under surfaces of tie
plates for the purpose of holding them to the ties, and flanges or
shoulders on the upper surfaces, designed to receive and resist the
lateral thrust of the rails and thus preserve the gauge of the
track, having been described in earlier patents and become well
known, invention in the Wolhaupter plates is left to depend upon
the method of combining strength with economy by providing flanges
upon the upper surfaces for the rails to rest upon; but this
feature also, besides having been in substance anticipated by
earlier patents, is
held to be no more than the product of
ordinary mechanical skill, since resort to channels, grooves, and
corrugations was a familiar method of reducing the cost of iron
plates by reducing their weight without decreasing their
strength.
A patentee is presumed to have had all prior patents before him
when he applied for his patent.
Mere carrying forward of the original thought, a change only in
form, proportions, or degree, doing the same thing in the same way,
by
Page 244 U. S. 286
substantially the same means, with better results, is not such
invention as will sustain a patent.
Patents claiming merely improvements in devices already well
exploited in the prior art must be limited strictly to the forms
described in the claims.
213 F. 789 affirmed.
The case is stated in the opinion.
MR. JUSTICE CLARKE delivered the opinion of the court:
On March 26, 1909, the Railroad Supply Company, petitioner,
commenced this suit against the Elyria Iron & Steel Company in
the Circuit (now District) Court for the Northern District of Ohio,
claiming infringement of Claim No. 8 of United States letters
patent No. 538,809, granted May 7, 1895, of Claims Nos. 1, 2, and 3
of patent No. 691,332, granted January 14, 1902, and of Claims Nos.
7 and 9 of patent No. 721,644, granted February 24, 1903. All of
these patents, granted to B. Wolhaupter, were acquired by the
petitioner, and each of the three purported to describe a new and
useful improvement in railroad tie plates.
Such proceedings were had in the case that, on March 4, 1912,
the district court decided that the petitioner's patents were not
infringed by the device manufactured and sold by the defendant.
On appeal to the Circuit Court of Appeals for the Sixth Circuit,
that court, on April 7, 1914, affirmed the decree of the district
court dismissing the bill, and held in its
Page 244 U. S. 287
opinion that the claims of the patents relied upon were void for
want of patentable novelty. This decree is now here for review on
certiorari.
A railroad tie plate, sometimes called a "wear plate," is a
rectangular piece of metal, originally with both surfaces flat,
designed to be placed upon the tie immediately under the rail for
the purpose of protecting the tie from the wear, which, in soft
wood, is very great, incident to the vibration of the rail caused
by passing engines and trains, and for the purpose of holding the
rail more firmly in place than it could otherwise be held by the
spikes without the plate, thereby preserving the gauge of the
track.
In the early days of railroading, when engines and cars were
small and light, when speed was comparatively slow, and when
hardwood, which held the spikes firmly in place, was abundant and
cheap, such plates were little used; but the increase in weight of
rails and rolling stock, the higher speed of trains, and the
necessary use of the cheaper soft woods for ties have brought them
into extensive use. The general use of these plates with heavy
rolling stock and traffic presented the problem of making them as
strong and inexpensive as possible, and in a form such that they
would adhere firmly to the ties while doing the least possible
damage to the fiber of the wood.
The statement of this problem shows convincingly that, even at
the beginning, it offered a very limited field for invention, if,
indeed, it presented any field at all for the exercise of that
inventive genius which it is the policy of the law to protect and
reward with a monopoly for seventeen years.
The claims of the patents declared on are as follows: Claim 8 of
Patent No. 538,809 reads:
"A railway tie plate formed on the under side with devices more
or less sharpened adapted to penetrate and engage the tie, and on
its upper side with a series of flanges on which the rail rests,
substantially as described. "
Page 244 U. S. 288
It would be difficult to write in more general terms a
description of any plate, whether channeled, corrugated, grooved,
or ribbed on both sides.
Claims Nos. 1 and 2 of Patent No. 691,332, differ so slightly
that No. 1 will suffice:
"A railway tie plate provided on its upper side with one or more
flanges on which the rail may rest or by which it is directly
sustained and on the under side with one or more tie-engaging
flanges extending parallel with the upper flanges and directly
beneath the latter, substantially as described."
Claims 7 and 9 of patent No. 721,644 are so similar that only
No. 7 need be quoted:
"A tie plate provided in its rail supporting surface with
transverse grooves or channels, and at one margin of said
supporting surface with a transverse rail abutting shoulder."
Wolhaupter, the grantee of the three patents, was a civil
engineer employed by a railroad company, and he testifies that he
first turned his attention to tie plates for the purpose of
improving them "in the year 1893 or early in 1894," and the
earliest of his three patents in suit is dated May 7, 1895.
The earliest patent for a "wear" or tie plate by that specific
name, which is shown by this record, was issued in 1881, and,
between that date and the date of the issuing of the first patent
in suit to Wolhaupter in 1895, twenty-six patents were issued, and
in the seven years between 1895 and 1902, when Wolhaupter's second
patent in suit was issued, nineteen more patents were issued for
various forms of this simple device.
Thus it is seen that Wolhaupter came late into this narrow, and
even then much exhausted, field of investigation, and in his first
patent (not here in suit), dated December 11, 1894, he claims
invention for placing one, or permissibly two, "elongated divided
ridges" on the under side
Page 244 U. S. 289
of such a plate to engage the tie, and, on the upper side, a
series of ridges parallel with those on the lower side, but
adapted, after being rolled, to being cut away to form a seat for
the rail. There is no claim as to the relative positions of the
ridges on the two faces of the plate.
In his second patent (the first in suit), his claim of invention
is for "one or more" flanges, "more or less sharpened" (not divided
now) on the under side of the plate, to engage the tie, and, on the
upper side, a series of flanges (ridges) on which the rail may
rest. The flanges (ridges) on the upper surface must not be placed
vertically above the flanges or ridges on the lower, and there is
no provision for cutting them away for a rail seat as in the first
patent. The dominating thought of this patent is the cutting of the
plate "on a diagonal line with relation to the rail flange," but,
as this form of plate is not claimed by the patentee in his later
patents, and as no merit is claimed for it in the testimony in the
record, it will be neglected.
In his third patent, Wolhaupter's inventive genius placed the
flanges on the under side parallel with and directly beneath those
on the upper side of the plate, instead of between them, as in the
second patent, or regardless of either position, as in the
first.
In his fourth patent, the flanges on the lower side are given a
position "transverse" to the ridges on the upper side.
In the first three of petitioner's patents, the flanges on both
surfaces of the plate are for use parallel to the grain of the tie
and transverse to the length of the rail. In the fourth patent, the
flanges on the under side are described in the specifications and
drawings as transverse to, but, in claim four, as parallel to, the
grain of the tie.
The minute and obviously wholly tentative variations thus
described in the plates in the Wolhaupter patents are fairly
illustrative of the slight differences in form given to this simple
device, on which this record shows forty-five
Page 244 U. S. 290
separate patents were granted during the twenty-two years
between 1881 and 1903.
This discussion of the record and reference to the respondent's
patents brings us to the question, do the claims of these patents
describe an "invention or discovery" or "a new and useful . . .
manufacture . . . or improvement thereof," such as our patent laws
were designed to protect?
We have seen that. long before Wolhaupter's patents, tie plates
were used for the purposes for which his plates were designed. It
was certainly obvious that, if wedge-shaped flanges, or ribs or
claws, or other downward projections were placed on the under side
of such plates, they would penetrate the ties when weight was put
upon them, and thus assist in holding the rail in place.
Very certainly it was also general knowledge before 1895 that,
if one wished to reduce the weight of a plate without loss of
strength, this could be done by using channel iron, angle iron, or
corrugated iron, or, which comes to the same thing, by having the
plate made with flanges or ribs (
Servis Railroad Tie Plate Co.
v. Hamilton Steel & Iron Co., 8 Can.Exch. 381), and the
placing of flanges on the upper side of such plates to engage the
outer flange of the bottom of the rail, and thus to receive the
lateral thrust caused by the flanges of the wheels, tending to
spread the rails, was also obvious and well known before
Wolhaupter's patents.
To the obviousness of the elements necessary to the solution of
this problem must be added the state of the art, if such it may be
called, when Wolhaupter, late in 1893 or early in 1894, began, as
he says, the investigation of tie plates, and "familiarized himself
with the literature of the subject." He testifies that he had seen
the tie plates of Servis (patented 1881, No. 249,407; 1884, No.
294,816) and of Goldie (patented 1887, No. 356,760; 1890, No.
426,530; 1891, No. 457,584; 1891, No. 457,585; and
Page 244 U. S. 291
1892, No. 485,030), and he is presumed by the law to have had
all prior patents before him when he applied for his patent.
Duer v. Corbin Cabinet Lock Co., 149 U.
S. 216,
149 U. S. 223;
Mast, Foos & Co. v. Stover Mfg. Co., 177 U.
S. 485,
177 U. S.
493.
In the plates of Servis, Wolhaupter saw a plate with "a flange
or flanges formed on the lower side" to engage the tie lengthwise
of the grain of the wood, and, of course, transverse to the rail,
and in the Goldie patents he saw in No. 457,584 "a triangular
tooth-like projection" extending downward from the bottom of the
plate and a raised shoulder on the upper side to receive the
lateral thrust of the edge of the rail flange, and in patent No.
485,030, he saw a plate with two downward projecting ribs to engage
the tie, with a shoulder on the upper side to receive the thrust of
the rail, and with a "transverse depression" in the upper surface,
and bearings or flanges on each side of this depression to receive
and support the base of the rail.
We thus have Wolhaupter confessing that, before he applied for a
patent, he had knowledge of tie plates with "ridges," "flanges,"
and "teeth" projecting downward from the under side of them to
engage the tie, differing at most only in form, and in this but
slightly, from the similar downward projecting flanges "more or
less sharpened" which appear in all three of his patents in suit;
that he had knowledge of plates with a shoulder on the upper
surface to receive the thrust of the side of the bottom of the
rail, not differing from the "rail-abutting shoulder" shown in all
three of his patents, and that he also had knowledge of the latest
Goldie patented plate, with the upper surface "channeled" by having
a depression extending across the plate under the central portion
of the bottom of the rail, and with a bearing on each side of it to
support the rail.
It is thus made very clear that the only appearance
Page 244 U. S. 292
even of novelty or of invention in the Wolhaupter plates is in
their having flanges on the upper surface, on which it is intended
the rail shall rest, for downward extending flanges on the under
side and the rail-abutting shoulder on the upper side are found in
earlier patents in almost precisely the form which he gave to them.
But such flanges on the upper surface of the Wolhaupter plate
cannot constitute, of themselves, patentable invention or novelty,
for it is very clear, as we have already said, that a resort to
channels, grooves, and corrugations was a familiar method of
reducing the weight, and thereby the cost, of iron plates without
decreasing their strength long before the Wolhaupter patents, and
this form was therefore one to which any skillful mechanic would
turn to accomplish the purpose that Wolhaupter claimed for it, and
that others did so resort to this form is sufficiently shown by
reference to the Wells patent, No. 203,570 (1878), the Wilson
patent, No. 522,867 (1894), and the Dunham patent, No. 469,386
(1892).
With these facts before him, the most that can be said for the
patents in suit is that they gave a somewhat different form to
three features which were perfectly familiar and were similarly
grouped in prior forms of tie plates, but without giving to any of
them any new function and without accomplishing by them any new
result. This brings the patents within the principle, so often
declared, that the
"mere carrying forward of the original thought, a change only in
form, proportions, or degree, doing the same thing in the same way,
by substantially the same means, with better results, is not such
an invention as will sustain a patent.
Roberts v. Ryer,
91 U. S.
150;
Belding Mfg. Co. v. Challenge Corn Planter
Co., 152 U. S. 100."
Market Street Cable R. Co. v. Rowley, 155 U.
S. 621,
155 U. S.
629.
The device involved in these patents is so simple and familiar
in all of its forms that a description of it seems
Page 244 U. S. 293
sufficient to visualize it to the reader, but cuts of it in
various forms may be found in the reported decisions of this case,
Railroad Supply Co. v. Elyria Iron & Steel Co., 213 F.
789, and in the report of the case, involving the same claims of
the same patents, in the seventh circuit, to be found in
Railroad Supply Co. v. Hart Steel Co., 193 F. 418, and 222
F. 261.
Clearly persuaded as we are that the slight variations claimed
for the patents in suit from the plates which had gone before do
not constitute patentable invention, we cannot consent to further
extend this discussion by a minute comparison of them with earlier
patents appearing in the record, but we content ourselves with
adopting as comment not to be improved upon in such a case as we
have here the following from a former decision of this Court:
"The design of the patent laws is to reward those who make some
substantial discovery or invention, which adds to our knowledge and
makes a step in advance in the useful arts. Such inventions are
worthy of all favor. It was never the object of those laws to grant
a monopoly for every trifling device, every shadow of a shade of an
idea, which would naturally and spontaneously occur to any skilled
mechanic or operator in the ordinary progress of manufactures. Such
an indiscriminate creation of exclusive privileges tends rather to
obstruct than to stimulate invention. It creates a class of
speculative schemers who make it their business to watch the
advancing wave of improvement, and gather its foam in the form of
patented monopolies, which enable them to lay a heavy tax upon the
industry of the country, without contributing anything to the real
advancement of the arts. It embarrasses the honest pursuit of
business with fears and apprehensions of concealed liens and
unknown liabilities to lawsuits and vexatious accountings for
profits made in good faith."
Atlantic Works v. Brady, 107 U.
S. 192,
107 U. S.
200.
Page 244 U. S. 294
We add that each of the patents of the petitioner being in terms
for an "improvement in tie plates," the state of the "prior art" as
described in this opinion requires that they be limited strictly to
the form described in the claims, and therefore the patents in
suit, even if they had proved valid, would not have been infringed
by the plates manufactured by the defendant.
The decree of the circuit court of appeals is
Affirmed.
MR. JUSTICE Day did not take any part in the decision of this
case.