Appellant Multisonics Development Corporation (Multisonics) agreed to sell to appellee Geni-Chlor International, Inc. (Geni-Chlor) a patent for a “Swimming Pool Water Conditioner,” along with “related inventions and know-how applicable to swimming pool use and pertaining to hypochlorite generating processes and apparatus.” A detailed written contract was prepared and executed by the parties on March 9, 1973. The contract provided for a purchase price of $201,000, payable with regular installments. Multisonics retained title to the patent as security until the full purchase price was paid, but granted Geni-Chlor an exclusive license to utilize the patent and related know-how in the interim. The contract also required that all disputes, except for those concerning the validity of the patent, be arbitrated. Geni-Chlor agreed to Multisonics’ express disclaimer of warranty of the patent’s validity.
Geni-Chlor failed to pay the January 1974 installment. Multisonics gave notice of default and submitted the matter to arbitration. The parties and the arbitrator agreed that the validity of the patent could not be determined by the proceedings. Geni-Chlor did not then try to obtain a collateral judgment that the patent was invalid, but participated in the arbitration, claiming that it was a licensee of the patent and could claim invalidity of the patent as a defense in a contract action under the theory of
Lear, Inc., v. Adkins,
The arbitrator found that the contract was a good faith agreement to purchase an unwarranted patent, and that other consideration included in the agreement would support the contract even if the patent should be invalid. Multisonics was awarded the balance owed under the contract, $190,-000 plus interest.
*983 The arbitrator’s decision was mailed to the parties on February 10,1975. Multisonics was required by California Civil Procedure Code § 1288.4 1 to wait 10 days after service of the award before it could confirm the award in state court. On February 11 Geni-Chlor filed this action in United States District Court for declaratory judgment that the patent is invalid, to set aside the arbitrator’s award, and to permanently enjoin Multisonics from enforcing the award. Jurisdiction was claimed under 28 U.S.C. § 1838(a), which provides that “the district court shall have original jurisdiction of any civil action arising under any Act of Congress relating to patents. . . .” The parties are both California corporations, precluding jurisdiction based on diversity.
Multisonics moved to confirm the arbitration award in state court upon expiration of the 10-day waiting period. The state court denied confirmation and stayed its proceedings pending the outcome of this action.
The district court denied Multisonics’ motion to dismiss under Federal Rule of Civil Procedure 12(b). Multisonics then admitted the patent’s invalidity. Geni-Chlor was awarded summary judgment enjoining enforcement of the arbitration award and declaratory judgment that the patent was invalid. Multisonics brings this appeal, challenging the district court’s jurisdiction over the subject matter and the award of summary and declaratory judgment. We find that the district court did have jurisdiction to consider this action but hold that the district court should have stayed its proceedings until final adjudication in the state court proceedings concerning the arbitration award.
Geni-Chlor contends the district court’s jurisdiction exists because the action “arises under” the patent laws pursuant to 28 U.S.C. § 1338(a). We agree, although the issue is a close one indeed.
2
It is well established that notwithstanding the substantial federal interest in patent matters, enforcement and construction of patent contracts can be the business of state courts, even though a
question
arising under the patent laws is presented. Federal courts assume jurisdiction only when the
ease
“arises under” the patent laws.
Pratt v. Paris Gas Light & Coke Company,
The cases establishing the meaning of “arising under” jurisdiction begin with
Wilson v. Sandford,
whether it [threats to sue users of plaintiff’s pumps for patent infringement] is a wrong or not depends upon the law of the state where the act is done, not upon the patent law, and therefore the suit arises under the law of the state.
American Well Works Company v. Layne and Bowler Company, 241 U.S.
257, 260,
In
Lear Siegler, Inc. v. Adkins,
Long before the enactment of the Federal Declaratory Judgments Act the Supreme Court had established two correlative rules relating to jurisdiction in patent matters. The first is that a case is *984 within the exclusive federal jurisdiction when it seeks to enforce a patent against an infringer, even though the complaint may show, in anticipation of a defense, the existence of an agreement between the parties relating to the patent. The second is that if the suit is to enforce or to revoke a patent licensing or other similar agreement, it “is not a suit under the patent laws of the United States, and cannot be maintained in a federal court as such.” (citations omitted) 3
It is beyond dispute that the Federal Declaratory Judgments Act, 28 U.S.C. § 2201, does not confer jurisdiction on a federal court to declare a patent invalid under 28 U.S.C. § 1388(a). The Act provides that a federal court may issue a declaratory judgment “in a ease of actual controversy
within its jurisdiction . .
.” (Emphasis added). Thus, a declaratory judgment must conform to traditional jurisdictional requirements.
Milprint, supra,
Nonetheless, this court held in
Lear Siegler, Inc.
v. Adkins,
We hold the district court in this case should have followed the example of the
Lear
district court. To act otherwise under the circumstances of this case was an abuse of discretion. In so holding, we treat the complaint in this case as not significantly different from that in
Lear Siegler,
although our opinion in
Lear Siegler,
Accordingly, we hold that where diversity is lacking, a patent licensee’s declaratory complaint which asserts patent invalidity simply to avoid the obligations of the license does not state a claim arising under the patent laws within the meaning of 28 U.S.C. § 1338(a).
Id. at 422.
Jurisdiction to enter a declaratory judgment, however, “does not require that the court exercise it. It has a judicial discretion to decline to grant such relief.”
Nor do the “device” aspects of plaintiff’s declaratory judgment efforts recede when it is recognized that the ultimate resolution of the dispute before us very likely will turn on the application of the Supreme Court’s decision in Lear
v. Adkins,
Reversed and Remanded To Stay Proceedings.
Notes
. “No petition may be served and filed under this chapter until at least 10 days after service of the signed copy of the award upon the petitioner.”
. Our holding makes it unnecessary to consider whether jurisdiction exists based either on “federal common law” under 28 U.S.C. § 1331(a), or on the Federal Arbitration Act, 9 U.S.C. § 10.
. See
also American Well Works Co. v. Layne and Bowler Co.,
