delivered the opinion of the Court.
Petitioners, New York corporations having their principal offices in that State, brought this suit in the northern district of Ohio against defendants, two corporations having regular and established places of business in that district and two individuals residing there. The complaint alleges that the defendants infringed plaintiffs’ rights under certain patents relating to the manufacture of hard-metal products by making, using and selling tools and parts thereof embodying such inventions. The answer avers that the patents are invalid and denies infringement, alleging that all manufacture by defendants has been under one or more of five patents granted defendant Gebauer. And the answer sets up a counterclaim against plaintiffs for the infringement of one of these patents and prays injunction against such infringement and an accounting. But it does not allege that plaintiffs are inhabitants of the district, or that they infringed defendants’ patent and have a regular and established place of business there. The plaintiffs moved to dismiss the counterclaim for want of jurisdiction. The district court granted their motion. Defendants appealed. Plaintiffs moved to dismiss the appeal on the ground that the dismissal of the counterclaim does not amount to the refusal of an injunction under § 129, Judicial Code, and was not appealable under that section. The Circuit Court of Appeals denied the motion and reversed the order appealed from. 56 F. (2d) 823.
Plaintiffs insist that the court erred in refusing to dismiss the appeal. Equity Rule 30 declares:
“
The defendant by his answer shall set out ... his defense to each claim asserted in the bill . . . The answer must state in short and simple form any counterclaim arising out of the transaction which is the subject matter of the suit, and
“ Where, upon a hearing in a district court, or by a judge thereof in vacation, an injunction is granted, continued, modified, .refused, or dissolved by an interlocutory order or decree, or an application to dissolve or modify an injunction is refused, or an interlocutory order or decree is made appointing a receiver, or refusing an order to wind up a pending receivership or to take the appropriate steps to accomplish the purposes thereof, such as directing a sale or other disposal of property held thereunder, an appeal may be taken from such interlocutory order or decree to the circuit court of appeals. . . . The appeal . . . must be applied for within thirty days from the entry of such order or decree, and shall take precedence in the appellate court; and the proceedings in other respects in the district court shall not be stayed during the pendency of such appeal unless otherwise ordered by the court, or the appellate court, or a judge thereof. . . .” 28 U. S. C., § 227.
Plaintiffs maintain that the Circuit Court of Appeals erred in sustaining the counterclaim.
They call attention to Equity Rule 30 and cite § 48 of the Judicial Code: “In suits brought for the infringement of letters patent the district courts . . . shall have jurisdiction, in law or in equity, in the district of which the defendant is an inhabitant, or in any district in which
Rule 30 is without force as against conflicting statutory provisions.
Washington-Southern Co.
v.
Baltimore Co.,
Section 24 (7) of the Judicial Code is the source from which district courts derive jurisdiction of cases arising under the p#atent laws. Under that clause and until the enactment of § 48 a suit for infringement might have been maintained in any district in which jurisdiction of defendant could be obtained.
In re Hohorst,
Affirmed.
Notes
Contra:
Radio Corp.
v.
J. H. Bunnell & Co.,
