Mr. Justice Curtis, having been of counsel for the defendants in error, upon the letters-patent drawn in question in this case, did not sit at the hearing.
This case was brought up, by writ of error, from the Circuit Court of the United States for the Southern District of New York.
The declaration was filed by the defendants in error, on the 8th of May, 1817, to recover damages in a plea of trespass upon the case, from the plaintiffs in error, and Robert W. Lowber, for the alleged infringement of their patent, for new and useful improvements in machinery, or apparatus for making pipes and tubes from metallic substances.
The declaration alleged, that John and Charles Hanson, of Huddersfield, England, were the inventors of the alleged improvements, on or before the 31st of August, 1837.
That on the 10th of January, 1840, the Hansons, assigned, in writing, to H. B. and B. Tatham, (two of the defendants in error,) the full and exclusive right to the said improvements.
That on the 29th of March, 1841, letters-patent of the United States were granted to H. B. & B. Tatham, as assignees of the Hansons, for the said improvements.
That on the 12th of October, 1841, H. B. & B. Tatham, assigned to G. N. Tatham, (the remaining defendant in error,) one undivided third part of the said letters-patent.
That, on the 14th of March, 1846, the said letters-patent having been surrendered, on account of the defective specifications of the said improvements, new letters-patent were issued therefor, on an amended specification, whereby there was granted to the plaintiffs below, their heirs, &c., for the term of fourteen years from the 31st of August, 1837, the full and exclusive right of making, vending, &c., the said improvements; a description whereof was annexed to and made a part of such patent.
That the letters-patent were of the value of $50,000; and that the defendants below had wrongfully and unlawfully made, used, and vended the said improvements, and made lead pipe to the amount of 2,000 tons, thereby to the injury of the plaintiffs, $20,000.
To this declaration, the defendants, Le Roy and Smith, pleaded not guilty; the defendant, Lowber, making no defence, nad permitting a default to be taken against him.
The cause was tried at the April Term, 1849, and a verdict rendered by the jury in favor of the plaintiffs, for $11,394, and costs, and a bill of exceptions was tendered by the defendants below.
On the trial of the cause below, the plaintiffs produced,––
1. Their patent of 1846, and the specification referred to therein, and making a part of the same.
2. They read in evidence certain agreements between the defendant, Lowber, and the defendants, Le Roy and Smith.
3. They gave evidence, tending to prove that J. & C. Hanson were the original and first inventors of the improvement; that the invention was a valuable one, &c.
4. That lead, recently become set, under heat and pressure, in a close vessel, would reunite perfectly after a separation of its parts; that, in the process described in the said patent, pipe was so made; that the Hansons were the first and original discoverers thereof; and that such discovery, and its reduction to a practical result, in the mode described in the patent, was useful and important.
5. That the defendants, Smith and Leroy, had been jointly engaged with Lowber in making lead pipe upon the plan described in the letters-patent, and selling the same, and had thus made and sold large quantities of pipe; that the agreement between them, relative to the manufacture of pipe, was colorable only, and was made as a cover to protect Le Roy and Smith, and throw the responsibility on the defendant, Lowber, who was insolvent.
6. That the improvement described in the said letters-patent was the same invention for which letters-patent had been granted to the Hansons, in England, and to H. B. & B. Tatham, here, as their assignees.
7. That the plaintiffs had been ready, and had offered to sell the said invention, and had sold the same for a large portion of the United States, within the last eighteen months.
The defendants below then read in evidence,––
1. The description of the English patent to the Hansons.
2. The patent to H. B. & B. Tatham, of 1841, and the specification thereof.
3. The specification of an English patent, granted to Thomas Burr, of 11th April, 1820.
4. The patent and specification of Burroughs Titus, granted in 1831.
5. The patent granted to George W. Potter, in 1833.
6. The evidence of George Fox, tending to show the invention and use by him of a similar machine, in 1830.
7. The specification of a patent to John Hague, in 1822.
8. The specification of a patent granted to Busk & Harvey, in 1817.
9. The specification of a patent granted to Ellis & Burr, in 1836.
10. The specification of a patent granted to Joseph Bramah, in 1797.
11. The defendants then gave evidence tending to prove that J. & C. Hanson were not the original and first inventors of the combination of machinery described in the letters-patent.
12. That the invention was not useful, nor the lead pipe, made upon the plan described, good.
13. That the combination of machinery described in public works, as having been invented by Titus, Potter, Fox, Hague, Bramah, and Busk & Harvey, were substantially the same as that described in the plaintiffs' patent.
14. That lead, when recently become set, under heat and extreme pressure, in a close vessel, would not reunite perfectly after a separation of its parts; and that, in the process as described in the plaintiffs' patent, it was not in a set, but in a fluid state when it passed the bridge.
15. That the defendants, Le Roy & Smith were not concerned in the manufacture of the pipe, or in making or using the machinery; that it was made for them by the defendant, Lowber, at a certain price per hundred pounds; and that they had not infringed upon the patent of the plaintiffs.
16. That the improvement described in the plaintiff's patent, of 1846, was not the same invention as that for which letters-patent had previously been granted to the Hansons, and to H. B. & B. Tatham.
17. That, for the space of eighteen months, from the date of the patent of 1841, the plaintiffs had neglected to put and continue on sale to the public, on reasonable trust, the invention or discovery for which the said patent issued.
The evidence being closed, the case was argued before the jury, after the court had given the charge, which will be presently stated. The jury found a verdict for the plaintiffs, which, when increased by the court, amounted to $11,748.60. The following bill of exceptions brought up the rulings of the court upon the several points made:
The evidence being closed, the Judge charged the jury
That the first question which it was material to determine was, what was the invention or discovery of John and Charles Hanson, for which their patent had issued, as the precise character of that invention had been the subject of controversy on the trial.
The patentees state in their specification, that the invention consists in certain improvements upon, and additions to, machinery for making pipes of metal, capable of being pressed, as described in Burr's patent, dated April 11, 1820. They then describe Burr's apparatus, and the process by which the pipe was made by it, and state the defects of that plan, in consequence of which, they say, it failed to go into general use.
These defects they claim to have overcome and remedied; and state that they had found that lead, and some of its alloys, when just set, or short of fluidity, and under heat and great pressure, in a close vessel, would reunite, after a separation of its parts, as completely as if it had not been separated, or, in other words, that, under these circumstances, it could be welded.
That, on this discovery, and in reference to and in connection with it, they made a change in the machinery of Burr, by which they succeeded in making perfect pipes, and were enabled to use a bridge at the end of the cylinder and short core, and thus surmount the difficulty of the Burr machine.
They also state, that they do not claim any of the parts–the cylinder, core, die, or bridge; but that they claim the combination when used to form pipes of metal, under heat and pressure, in the way they have described.
There can be no doubt that, if this combination is new, and produces a new and useful result, it is the proper subject of a patent. The result is a new manufacture.
And even if the mere combination of machinery in the abstract is not new, still, if used and applied in connection with the practical development of a principle, newly discovered, producing a new and useful result, the subject is patentable. To which last opinion and decision, the counsel for the defendants did then and there except.
In this view, the improvement of the plaintiffs is the application of a combination of machinery to a new end,–to the development and application of a new principle, resulting in a new and useful manufacture.
That the discovery of a new principle is not patentable; but it must be embodied and brought into operation by machinery, so as to produce a new and useful result.
Upon this view of the patent, it is an important question, for the jury to determine, from the evidence, whether the fact is established on which the alleged improvement is founded, that lead, in a set or semi-solid state, can thus be reunited or welded after separation.
The Judge here commented briefly upon the testimony, referring to the experiments which were testified to, and the results of which were exhibited to the jury, on the part of the plaintiffs and defendants, and, in continuation, stated:
That there was one experiment which was testified to by Mr. Keller, and the result of which was shown to the jury, which was made under circumstances that seem not to be subject to any misapprehension, and which, if he is not mistaken, and his testimony is correct, would seem to settle the question. But this was a question of fact, to be decided by the jury on the evidence. Hereupon, the counsel for the defendants excepted to this part of the charge of the Judges.–That it had been objected, that the improvement described in the patent of March 14, 1846, was different from that of March 29, 1841. The act only authorized a reissue for the same invention, the first specification being defective.–That he had compared the descriptions contained in the two patents, and, though the language was in some parts different, it would be found that the improvement was substantially the same, and that he therefore apprehended they would have no great difficulty in this branch of the case; to which the defendants' counsel excepted.–That it was also objected, that the plaintiffs' patent was invalid, for want of originality; that the invention had been before described in public works, and Bramah, Hague, Titus, Fox, and Potter, were relied on by the defendants.–That, in the view taken by the court, in the construction of the patent, it was not material whether the mere combinations of machinery referred to were similar to the combination used by the Hansons; because the originality did not consist in the novelty of the machinery, but in bringing a newly-discovered principle into practical application, by which a useful article of manufacture is produced, and wrought pipe made, as distinguished from cast pipe. Hereupon the defendants' counsel excepted.
That in the patents referred to, from the year 1797 to 1832, the combination which was claimed to be identical, was confessedly used for making pipe, by casting with fluid lead in a mould, and after it was set by the application of water, forcing it out.
And the question is, whether any of these inventions are substantially the same as the plaintiffs'; whether, even if by these modes pipe had been successfully made for common use, it would have been made in the same manner as the Hansons'; to which opinion the counsel for the defendants excepted.
That it was further objected that the patentees have forfeited their rights, on account of having omitted to put and continue the invention on sale within eighteen months after the patent was granted, upon reasonable terms. The Judge here commented upon the testimony on this part of the case, and in continuation said:
That it was not essential, under the section of the statue referred to, that the patentees should take active means for the purpose of putting their invention in market, and forcing a sale, but that they should at all times be ready to sell at a fair price, when a reasonable offer was made.
That it was for the jury to say whether it was put and continued on sale, under this view of the law; to which opinion the counsel for the defendants excepted.
That the defendants, Le Roy, and Smith, contend that they have not infringed the plaintiffs' patent; that they were but the purchasers of the pipe, and that Lowber was the manufacturer, under the agreement which has been read.
The Judge here referred to the evidence on this branch of the case, and said:
That if the contract made by the defendants with Lowber, was bon a fide, and they had no connection with the manufacture of the articles, except to furnish lead and pay him a given price, deducting the expenses; and if the contract was in fact carried out and acted upon in that manner, then the defendants would not be liable. But if the agreement was only colorable, and was entered into for the purpose of deriving the benefit and profits of the business, without assuming the responsibility for the use of the invention, and for the purpose of throwing the responsibility on Lowber, who was insolvent, then they were as responsible as he was.
That aiding and assisting a person in carrying on the business and in operating the machinery, would implicate the parties so engaged. If, therefore, these defendants participated actively in conducting the machine, directing and supervising its operations; if the evidence establishes that position, then, as aiding and assisting, they are as responsible as Lowber, (to which last opinion and decision the defendants' counsel excepted.)Prior to the giving of the preceding charge to the jury, the defendants' counsel requested the court to instruct them according to the following written proposition submitted; and his honor, after he delivered the said charge, took up the said propositions in their order, and gave the instructions to the jury, which are respectively subjoined thereto.
Proposition I. If the jury believe that the agreements executed on the 13th of April and 13th of May, 1846, by which Lowber, as manufacturer, was to make the pipe for LeRoy & Co., on his machine, at 55 cents the 100 pounds, was real and bon a fide, on an actual dissolution of the partnership of Lowber & LeRoy, and not colorable to throw the responsibility of working the machine on Lowber alone, then the plaintiffs cannot recover.
Upon which, his honor said that he had already given all the instructions he deemed necessary on that point; the proposition was correct, and it was for the jury to decide that fact.
Proposition II. That even if the Tathams first introduced the pipe in question in this country, as an article of commerce, that does not give them any right to recover, unless the patents under which they claim were good and valid, for an invention not before known, used, or described in a public work.
Upon which his honor instructed the jury, as requested by the defendants' counsel.
Proposition III. That if the jury believe that the combination patented by the plaintiffs was before patented by Burroughs Titus, or any one else in this country, or patented and described in a well known public work abroad, the plaintiffs cannot recover, although such machines thus ...