Evans v. Jordan & Morehead. 1 Brock.

OLIVER EVANS v. JORDAN & MOREHEAD.

[1 Brock. 248.]

An old patent, securing to the inventor of improved machinery for the manufacture of flour and meal, the exclusive use of his invention for fourteen years, having expired, J. & M. erected machinery, adopting the improvements of the patentee, and subsequently, a special act of Congress was passed, authorizing the Secretary of State to issue a second patent for the same invention, for an additional term of fourteen years, which act contained the proviso, "that no person who shall have used the said improvements, or have erected the same for use before the issuing of the said [second] patent, shall be liable to damages therefor." Held: That this proviso did not authorize the use of this improved machinery by J. & M. subsequent to the date of the second patent, and for such subsequent use, they were liable to damages to the patentee.

THIS was an action for damages brought by the plaintiff, against the defendants, for an alleged violation of a [*249] patent issued to him for certain improvements made by him in the art of manufacturing flour and

meal.

In the year 1790, Oliver Evans obtained a patent, granting to him, for the term of fourteen years, the exclusive right of making, constructing, using, and vending, his invention in the structure of machinery, to be employed in the art of manufacturing flour and meal. After the expiration of the term for which this patent-right was secured, Jordan & Morehead, the defendants in this suit, constructed and used the improved machinery, invented by Oliver Evans. On the 21st of January, 1808, Congress passed a special act,1 authorizing the Secretary of State, on application in writing, by Oliver Evans, to cause letters-patent to be made out in the manner and form prescribed by the general patent law, granting to him,

1"An Act for the relief of Oliver Evans." Act of January 21st, 1808.[Editor.]

Evans v. Jordan & Morehead. 1 Brock.

for a term not exceeding fourteen years, "the full and exclusive right and liberty of making, &c., his invention, &c., in the art of manufacturing flour and meal, and in the several machines which he has discovered, invented, improved, and applied to that purpose: Provided, That no person who may have heretofore paid the said Oliver Evans for license to use his said improvements, shall be obliged to renew said license, or be subject to damages for not renewing the same: And provided also, That no person who shall have used the said improvements, or have erected the same for use, before the issuing of the said patent, shall be liable to damages therefor." The second patent was issued on the 22d of January, 1808, and this suit was brought in 1810. The defendants pleaded specially, that they had constructed and used the improved. machinery of Oliver Evans, subsequently to the expiration of the first patent, and before the date of the second, and had continued to use the same ever since, as it was lawful for them to do, and to this plea the plaintiff demurred. The same question was also presented in other causes depending in this Court, in which the said Oliver Evans was plaintiff.

*The cause was argued at this Term, 1813, be- [250] fore MARSHALL, C. J., and TUCKER, J., and the following opinion was delivered by

MARSHALL, C. J.-These cases came on to be heard on demurrers to several pleas in bar which have been filed by the defendants. It is intended to present two questions for the consideration of the Court.

1st. Is Oliver Evans entitled to maintain this action against a person who has used his machinery subsequent to the date of his patent, but had constructed it previous to the passage of the act by which his patent was authorized?

2d. Is the case affected by the circumstance, that Oliver

Evans v. Jordan & Morehead. 1 Brock.

Evans had obtained a previous patent for the same discovery, which previous patent had expired before the construction of the machine, for the use of which the present suit is instituted?

This being one of those subjects which is, by the Constitution of the United States, delegated entirely to the government of the Union, the question which has been made must depend on the acts of Congress.

The act of 1793 authorizes the Secretary of State to issue a patent to the inventor of any new and useful art, securing to him "for a term, not exceeding fourteen years, the full and exclusive right and liberty of making, constructing, using, and vending to others to be used, the said invention or discovery." This right could not be full and exclusive, if any other person should have a right to make, construct, use, or vend the invention which was the subject of the patent. The 5th section of the same act subjects to a specific penalty "any person who shall make, devise, and use, or sell the thing so invented." The terms "devise and use" being coupled together, it might well be questioned whether, under this law, any person would be subject to the penalty for using a machine which he had not also made or devised. But this doubt is removed by the act of 1800.2 The [*251] *3d section of that act repeals the 5th section of the act of 1793, and subjects to the damages therein prescribed "any person who shall make, devise, use, or sell," the invention of any other, which that other has secured by a patent.

This clause cannot be expressed in terms which would show more conclusively the intention of the legislature to

1 Act to promote the progress of the useful arts. Feb. 21, 1793. 1 Story's Laws U. S., ch. 55, p. 300.- [Editor.]

2 Act of April 17th, 1800. 1 Story's Laws U. S., ch. 25, p. 752.[Editor.]

Evans v. Jordan & Morehead. 1 Brock.

subject each act contained in the enumeration to the penalty of the law, than those which are employed. It has, therefore, been deemed necessary, by the counsel for the defendants, to insist that the obvious construction ought to be overruled, either because it is unconstitutional, or because it is a manifest injustice, which ought not be ascribed to the legislature.

To subject any person to a penalty for using a machine, the invention of another, which had been constructed anterior to the patent, has been pronounced an ex post facto law, and, consequently, void.

But an act which prescribes conditions, under which alone a thing may be used in future, cannot be ex post facto. It attaches neither guilt nor punishment to a past act, but looks forward to future acts, and prohibits the future use of the machine invented by another, without compensating that other for his invention.

But it is contended that the injustice of exposing an individual to pay for the use of a machine, a sum which he may deem above its value, or to lose one which has been constructed at considerable expense, when he believed it might be lawfully constructed and freely used, is so glaring, that such a construction ought never, if it can be avoided, to be placed on an act of the legislature.

That an act ought so to be construed as to avoid gross injustice, if such construction be compatible with the words of the law, will not be controverted; but this principle is never to be carried so far as to thwart that scheme of policy which the legislature has the power to adopt. To that department is confided, without revision, the power of deciding on the justice as well as wisdom of measures relative to subjects on which they have the constitutional power to act. Wherever, then, their language admits of no doubt, their plain and obvious intent must prevail.

[* 252 ]

Evans v. Jordan & Morehead. 1 Brock.

* In cases of patents, although some injustice may ensue from imposing a price to be paid to the inventor, on the future use of a machine which was constructed before the patent was obtained, yet the great fundamental principles of right, and of property, do not appear to be so vitally wounded as to induce the Court to resist and struggle against the obvious meaning of words.

The constitution gives to the legislature a power "to promote the progress of useful arts, by securing, for limited. times, to inventors, the exclusive right to their respective discoveries." In the exercise of this constitutional power, the legislature has passed an act, prescribing the mode by which a patent to any invention may be obtained, and giving to the patentee the exclusive right to make, devise, use, or sell it, for fourteen years from the date of the patent.

The constitution and law, taken together, give to the inventor, from the moment of invention, an inchoate property therein, which is completed by suing out a patent. This inchoate right is exclusive. It can be invaded or impaired by no person. No person can, without the consent of the inventor, acquire a property in the invention. Whenever, then, previous to a patent, any person constructs a machine discovered by another, he constructs it subject to the right of that other. His right to use it is qualified by the paramount right of the inventor to prescribe the conditions on which he shall use it. Were it otherwise, the exclusive right in the discovery which the constitution authorizes Congress to secure to the inventor, and the exclusive right to use it after the date of the patent, which the act of Congress confers, would not be exclusive, but would be participated with every person who had constructed the machine previous to the emanation of the patent.

If gentlemen will recollect, that this inchoate and indefeasible property in the thing discovered commences with the