Under date of March 12, 1889, two letters-patent, numbered respectively 399, 495 and 399, 496, were granted to one Granville E. Carleton, one of which related to an improved kiln, and the other to a new method, for calcining stone in the manufacture of lime or cement.
*186On January 2, 1898, the patentee, while still the owner of both patents, entered into a written contract under seal with the defendants, by the terms of which he gave to them the right to use the apparatus and the method covered by these two letters-patent in certain of their lime kilns; and the defendants, upon their part, covenanted to make full and true returns, twice yearly, of the quantity of lime manufactured by them; and further, “to pay to the party of the first part (the patentee) two cents per cask as a license fee on every barrel of lime manufactured by said party of the second part (the defendants) in said kilns by means of the apparatus and method covered by said letters-patent.” By mutual agreement of the parties the price was subsequently reduced to one cent per barrel. For several years subsequently the defendants used the patented apparatus and method, rendered accounts to the patentee of the quantity of lime manufactured by them, and paid therefor in accordance with the contract.
On September 25, 1894, the patentee, by sufficient deeds duly executed and recorded in the United States Patent Office, sold assigned and set over to his wife, the plaintiff, the patents described in and covered by these letters-patent. The language used in each of the deeds, applicable to the thing transferred, is as follows, “ all the right, title and interest I have in the above described invention, as secured to me by letters-patent, for, to, and in the United States. The same to be held and enjoyed by the said S. Josephine Carleton for her own use and behoof,' and for the use and behoof of her legal representatives to the full end of the term for which said letters were granted as fully and entirely as the same would have been held and enjoyed by me had this assignment and sale not been made.”
This action of debt upon the defendants’ covenant to pay a license fee, contained in the written and sealed contract of January 2,1898, is brought by the grantee of the two patents, in her own name, to recover the stipulated license fee for the lime manufactured by the defendants in the year 1896. Two questions are raised relative to the plaintiff’s right to maintain this action.
I. The defendants say in their plea that during the year 1896 *187they did not manufacture any lime by the use of the apparatus or under the method covered by tbe letters-patent above referred to. “ That during said time the apparatus and methods used by them in said kilns and in their other kilns were not covered by the plaintiff’s said letters-patent or either of them, and that the plaintiff has no patent on said apparatus and methods or any of them so used by the defendants, and that said apparatus and methods so used by the defendants, during the time aforesaid, and each of such apparatus and methods so used by the defendants, are not an infringement of the plaintiff’s said letters-patent or either of them.”
The contention of the plaintiff is, as shown by the evidence, that the apparatus and method used by the defendants in the manufacture of lime during this period, if not precisely the same as the pat- , ented apparatus and method, were < practically and essentially the same, that they were in every sense identical and were infringements of the plaintiff’s patents. Thereupon the defendants say that this question is not one which can be determined in the state court; that this court, by reason of the pleading and the contention of the parties, has been ousted of its jurisdiction of the cause and that the issue can only be tried in the courts of the United States.
However many practical difficulties may arise in the trial of an issue of this kind in a state court, we must consider the question of jurisdiction settled against the contention of the defense by the great weight, and, in fact, almost unbroken line, of authorities both federal and state.
By the United States B. S., § 711, the courts of the United States are given exclusive jurisdiction: “Fifth. Of all cases arising under the patent-right or copyright laws of the United States.” But this is not a case arising under the patent-right laws of the United States. It is an action upon a contract, between citizens of the same state, of which the state courts have the exclusive jurisdiction. It is brought to recover the license fee stipulated in a written contract, wherein the respective rights of the parties to that contract are fully provided for; and the only question that arises is, whether the defendants, during the period sued for, have been using the apparatus and method covered by the letters-patent, which *188they had a right to use under their license, and are consequently liable for the agreed royalty, although incidentally the question of infringement may arise.
But it is not sufficient to oust the state court of its jurisdiction of a cause that a question incidentally arises under patent laws, the statute referred to gives the courts of the United States jurisdiction only of cases arising under such laws. To constitute such a case the plaintiff must set up some right, title or interest under the patent laws, or at least make it appear that some right or privilege will be defeated by one construction, or sustained by the opposite construction, of these laws. Starin v. New York, 115 U. S. 248 ; Germania Ins. Co. v. Wisconsin, 119 U. S. 473.
The United States Supreme Court has frequently held that the federal courts had no jurisdiction, irrespective of citizenship, of suits to recover a royalty, or for the specific execution of a contract for the use of a patent, or of suits where a subsisting contract is shown governing the rights of the party in the use of an invention, and that such suits not only may, but must, be brought in the state courts. Hartell v. Tilghman, 99 U. S. 547; Wilson v. Sandford, 10 How. 99; Albright v. Teas, 106 U. S. 613; Wade v. Lawder, 165 U. S. 624. In the latter case it is said: “ Where a suit is brought on’a contract of which a patent is the subject matter, either to enforce such contract or to annul it, the ease arises on the contract,, or out of the contract, and not under the patent laws.”
In St. Paul Plow Works v. Starling, 127 U. S. 376, an action commenced in the United States Circuit Court by a citizen of one state against a corporation of another to recover the royalty stipulated in a license to make and sell a patented article, the question whether the patent was valid was raised by the pleadings, the court said that it was unnecessary to decide whether the case should be considered as “arising under” the patent laws of the'United States as it was unquestionably a “case touching patent rights ” and therefore, by virtue of another statute, within the appellate jurisdiction of that court.
But in the recent case of Pratt v. Paris Gaslight & Coke Co., 168 U. S. 255, this precise question, in .principle, was decided.
*189If; was there held that evidence of the invalidity of a patent and its infringement of a prior patent does not oust the jurisdiction of a state court in an ordinary action of assumpsit, when the state court has jurisdiction both of the parties and of the subject matter as set forth in the declaration, and the question of the invalidity of the patent is incidental to a defense of the lack of consideration and of a rescission of the contract. And further, that the power of the state courts to determine questions arising under the patent laws is not precluded by the statute above referred to which gives exclusive jurisdiction to the federal courts of cases arising under 'these laws.
In this case the court points out the distinction between questions arising under the patent laws and cases arising under these laws and says: “ There is a clear distinction between a case and a question arising under the patent laws. The former arises when the plaintiff in his opening pleading — be it a bill, complaint or declaration — sets up a right under the patent laws as ground for a recovery. The latter may appear in the plea or answer or in the testimony. The determination of such question is not beyond the competency of the state tribunals.”
To the same effect may be cited the decisions of many state courts. See Bliss v. Negus, 8 Mass. 46 ; Nash v. Lull, 102 Mass. 60; Holt v. Silver, 169 Mass. 435; Dunbar v. Marden, 13 N. H. 311; Rich v. Atwater, 16 Conn. 409; Sherman v. Champlain Transportation Co., 31 Vt. 162, and many other eases which will be found cited in Pratt v. Graslight & Coke Co., supra.
It is true, that in Elmer v. Pennel, 40 Maine, 430, this court came to a different conclusion and decided that in a suit upon a note given for the conveyance of a patent right, proof that such patent was void, because an infringement of a prior one is not admissible, unless that fact had been previously determined by a Circuit Court of the United States. But this case has never been followed in this state, or elsewhere to our knowledge, and it has been so frequently criticised by other courts that we can not now regard it as an authority.
In view of the overwhelming weight of authorities, we must *190consider the following to be the true principle, as stated by Mr. Justice Clifford, in Blanchard v. Sprague, 1 Cliff. 288 : “Whenever a contract is made in relation to patent rights, which is not provided for and regulated by an act of Congress, the parties, if any dispute arises, stand upon the same ground as other litigants in respect to the jurisdiction of the court.”
II. The remaining question is, whether this action upon the contract under seal of January 2, 1893, can be maintained by the plaintiff in her name. The case does not show any assignment of the contract to her, except in so far as the deeds of the patent rights, already quoted from, may have the effect of an assignment. And it is not claimed by the plaintiff that she is the assignee of a chose in action and could therefore, under our statute, maintain the suit in her own name. The defendants’ covenant was to pay the stipulated royalty to the patentee, the other party to the contract, not to his assigns. It may be assumed, however, that the deeds to the plaintiff transferred to her the beneficial interest in all outstanding contracts respecting the patent.
But- this does not enable her to maintain an action in her own name upon the covenant to pay royalties. Where the contract is under seal, the legal title is in the obligee, and the action must be brought in his name. Farmington v. Hobert, 74 Maine, 416. And although the covenant under seal with one person is expressed to be for the benefit of another, an action for its breach must be in tbe name of the covenantee. Brann v. Maine Benefit Life Association, 92 Maine, 341.
This has always been the rule at common law. In 1 Chitty on Pleadings, 3, this is said to be “ an inflexible rule ” respecting a deed inter parties. “ When the deed is inter parties, that is an indenture, no one who is not named therein as a party can sue upon his covenants.” 15 Encyl. of Pleading and Practice, 508. “ In regard to contracts under seal, the law has always been that only those who were parties to them could sue upon them.” Saunders v. Saunders, 154 Mass. 337.
No authority is cited sustaining the plaintiff’s right to maintain this action, nor that a covenant such as the one in suit should be *191subject to any exception to the general rule of the common law which has always been upheld in this state; but it is urged in support of the action that the position of the plaintiff is analogous to that of the grantee of the reversion of land under lease for a term of years, and that such grantee may maintain an action in his own name to recover the rent maturing after the grant of the reversion.
It is true, that such an action may be maintained by this grantee of a reversion, but it is probable that even this could not have been done at common law, and that the right of a grantee of the reversion of land to maintain an action upon a lease for rent accruing after the grant, was given by the- statute 32 Henry VIII, c. 34, which became a part of our common law. It is said in 1 Chitty on Pleadings, 20: “ But at common law none but parties or privies to express covenants, as the parties or their heirs or devisees, could sue thereon, the privity of contract being in such case wanting; and the grantee of the reversion is therefore considered as a mere stranger. This defect was remedied by the statute 32 Henry VIII, c. 34, which transfers the remedy and right of action to the grantee against the lessee or his assigns, although, the grantee be not named in the lease.” Although, it is said in Patten v. Deshon, 1 Gray, 325, that this right existed at common law independent of the statute referred to.
But however this may be, our attention has not been called to, and we are not aware of, any case which is an authority for an extension of the rule to the case of a personal covenant; while in several cases, where the covenant was more closely analogous to that of a lessee to pay rent than is true of the present case, the courts have declined to extend the rule to personal covenants.
In Walsh v. Packard, 155 Mass. 189, it was held that the covenant of the surety for the payment of the rent of leased premises was a personal one, and did not run with the land, and that consequently the administrator of the covenantee, and not his heirs, was the proper person to sue. To the same effect is the case of Harbeck v. Sylvester, 13 Wend. 608.
We are, therefore, of the opinion that a suit for the breach of a purely personal covenant, such as the one in suit, must be brought *192in tbe name of the covenantee, and that this action, for that reason, can not be maintained. In accordance with the stipulation of the report the entry will be,
Plaintiff nonsuit.