This is an appeal from the order of the United States District Court for the Eastern District of Kentucky, Civil Action No. 86-225 (Oct. 30, 1987), dismissing the declaratory judgment complaint of Speedco, Incorporated (Speedco) against Donald Estes for lack of jurisdiction. We affirm.
BACKGROUND
In January, 1984, Mr. Estes applied for a patent on an invention relating to rock dusting equipment used in underground coal mines. On May 30, 1984, during the pendency of the patent application, Mr. Estes and Quick Duster, Inc. (Quick Duster), a Kentucky corporation of which Mr. Estes was president and sole stockholder, executed a contract of sale in which all stock in Quick Duster and all rights to the invention were sold to Speedco, also a Kentucky corporation, for $500,000. Speedco paid $100,000 to Mr. Estes at the time that the agreement was signed, and executed a promissory note in the amount of $400,000, which was payable in ten annual installments of $40,000 plus 7% interest on the unpaid balance. On April 16, 1985, United States Patent No. 4,510,883 (the ’883 patent), entitled “Apparatus for Distributing Powdered Material,” was issued to Speedco as the assignee of the inventor, Mr. Estes.
According to Speedco’s allegations 1 in the district court in this action, Speedco subsequently learned that Mr. Estes had knowingly failed to disclose both patented and unpatented prior art to the United States Patent and Trademark Office (PTO) during prosecution of the ’883 patent. Furthermore, Speedco alleged that Mr. Estes had been aware of another company’s intention to manufacture a machine that “misappropriated the essence” of his invention, but neither conveyed this information to Speedco prior to the sale transaction nor informed his own patent counsel, who might have been able to draft the claims of the ’883 patent to cover that device. Finally, according to Speedco, Mr. Estes falsely represented to Speedco that the other company “had been placed under enforceable legal obligations” not to market a machine embodying the Estes invention or to use the trade secrets and nonpatentable proprietary aspects of the invention.
Speedco made its first installment payment on the promissory note to Mr. Estes in 1985 but did not make the second install *911 ment payment when it became due in 1986. Mr. Estes promptly gave notice of payment due to Speedeo, but declined Speedco’s “invitation” to discuss the validity of the ’883 patent and Speedco’s obligations under the note, stating in a letter from his counsel to Speedco’s counsel that:
You may inform your clients [Speedeo] that if payment is not received when due pursuant to our previous notice then we anticipate that litigation will be necessary to collect the amounts due.
Instead of paying the second installment, Speedeo filed the present action in district court, seeking a “declaration of rights” between the parties with respect to the ’883 patent and how those declared rights relate to the parties’ financial rights and obligations under the purchase agreement involving the patent.
Speedco’s complaint does not allege that the ’883 patent is invalid. In fact, Speedeo stresses that its prime objective has always been to obtain and utilize a valid, enforceable patent. Nor does Speedeo allege that Mr. Estes is infringing the ’883 patent. The gravamen of Speedco’s complaint is that the ’883 patent was “weak,” thereby forcing Speedeo to undergo great expense to “maintain” or “salvage” its rights associated with the patent. In short, Speedeo believes that it paid too much for the assignment of the invention because the validity and/or enforceability of the ’883 patent is not free from doubt, even if valid, and the coverage of the patent’s claims is not as broad as Speedeo was led to believe at the time of the assignment. Thus, Speedeo apparently seeks an evaluation by the district court as to the “validity and/or enforceability” of the patent and to have the terms of the assignment reformed in accordance with the district court’s determination of the “true” value of what was conveyed. In short, Speedeo seeks court approval to pay Mr. Estes less.
The district court granted Mr. Estes’s motion to dismiss the complaint, holding that it lacked subject-matter jurisdiction under 28 U.S.C. § 1331 (1982) and 28 U.S.C. § 1338 (1982) and that no actual controversy existed for declaratory judgment jurisdiction under 28 U.S.C. § 2201 (1982 & Supp. IV 1986). Speedeo argues on appeal that the district court properly could assume jurisdiction under section 1338(a).
OPINION
Where there is no diversity between the parties, as here, the federal Declaratory Judgment Act, 28 U.S.C. § 2201, does not create an independent source of federal court jurisdiction.
Shelly Oil Co. v. Phillips Petroleum Co.,
Section 1338(a) provides, in pertinent part, that “[t]he district courts shall have original jurisdiction of any civil action arising under any Act of Congress relating to patents_” However, contrary to Speed-co’s arguments, the jurisdictional test under section 1338(a) is not confined solely to the “relating to patents” language of the statute, but requires also that the action be one “arising under” the federal patent laws. As the Supreme Court in
Christianson v. Colt Industries Operating Corp.,
— U.S. -, -,
In interpreting § 1338’s precursor, we held long ago that in order to demonstrate that a case is one “arising under” federal patent law “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.” Pratt v. Paris Gas Light & Coke Co.,168 U.S. 255 , 259 [18 S.Ct. 62 , 64,42 L.Ed. 458 ] (1897)_ Linguistic consistency, to which we have historically adhered, demands that § 1338 jurisdiction likewise extend only to those cases in which a well-pleaded complaint establishes either that federal patent law creates *912 the cause of action or that the plaintiff’s right to relief necessarily depends on resolution of a substantial question of federal patent law, in that patent law is a necessary element of one of the well-pleaded claims.
Furthermore, the “well-pleaded complaint” rule contemplates that whether an action arises under federal law “must be determined from what necessarily appears in the plaintiff’s statement of his own claim in the bill or declaration, unaided by anything alleged in anticipation or avoidance of defenses which it is thought the defendant may interpose.”
Taylor v. Anderson,
In accordance with the Supreme Court’s teaching in
Skelly Oil,
we determine whether federal court jurisdiction exists in a case seeking a declaratory judgment by applying the well-pleaded complaint rule not to the declaratory judgment complaint, but to the action that the declaratory defendant would have brought.
Here, Mr. Estes’s threatened litigation pertained only to a possible future resort to a state law contract action to enforce the terms of the contract and recover the overdue funds owed on the promissory note. Mr. Estes no longer has a colorable claim of ownership to the ’883 patent since Speedco owns all rights in the '883 patent as a result of the assignment from Mr. Estes. Ordinarily, ownership of a patent is a requisite to the right to sue for patent infringement.
See Agrashell, Inc. v. Hammons Products Co.,
With respect to Mr. Estes’s threatened state law claim, “original federal jurisdiction is unavailable unless it appears that some substantial, disputed question of federal law is a necessary element of one of the well-pleaded state claims.”
Franchise
*913
Tax Board,
This court’s decision in
C.R. Bard, Inc. v. Schwartz,
Nevertheless, Speedco argues that the failure to find jurisdiction in the district court in these circumstances would subject Speedco to the “unappealing prospect” of having its patent rights determined in the state courts of Kentucky. However, the statutory limitations on the jurisdiction of this court and the federal district courts, in conjunction with the well-pleaded complaint rule, can and do result in state courts resolving patent issues.
Contrary to Speedco’s assertions, the Federal Circuit was not intended by Congress to be “the exclusive tribunal to hear appeals relating to patents” or to be the only federal circuit court to hear appeals of patent law issues.
See Christianson,
— U.S. at -,
State and federal courts often are required to interpret and apply laws from outside their respective jurisdictions in order to decide specific issues in cases properly before them.
See, e.g., Felder v. Casey,
— U.S. -, -,
Similarly, state courts confronted with federal law issues usually turn to the law of the appropriate federal court to aid in the resolution of those federal issues. While the prevailing view among the highest courts in the various states is that a state court is only bound as to meaning of federal constitutional law and federal statutory law by interpretations of the U.S. Supreme Court,
see, e.g., 423 South Salina Street, Inc. v. City of Syracuse,
CONCLUSION
As this court observed in
Atari,
AFFIRMED.
Notes
. Of course, we express no opinion on the validity or merits of Speedco’s allegations, but merely repeat the minimum necessary to provide sufficient background for the decision in this appeal.
. Speedco asserts that the failure to find an actual controversy under the patent laws in the present circumstances would force the assignee of a patent to renounce the assignment before suing the assignor to prove invalidity. However, in light of our conclusion of no jurisdiction, resolution of whether Speedco as an as-signee has standing to challenge the '883 patent’s validity in a suit against Mr. Estes is not required.
Cf. Diamond Scientific Co. v. Ambico, Inc.,
