The University of Pittsburgh (“Pitt”) appeals the final judgment of the United States District Court for the Western Dis *1330 trict of Pennsylvania dismissing with prejudice its patent infringement action for lack of standing. Judgment, Univ. of Pittsburgh v. Varian Med. Sys., Inc., No.07-CV-0491 (W.D.Penn. June 16, 2008). Varían Medical Systems, Inc. (“Varían”) cross appeals the district court’s denial of its motions for sanctions and attorney fees. We need not decide whether a dismissal was warranted in this case because we hold the district court erred in dismissing the claims “with prejudice.” Thus, we vacate the dismissal and remand with instructions to designate the dismissal as “without prejudice.”
BACKGROUND
In 1994, scientists at Pitt and Carnegie Mellon University (“Carnegie Mellon”) agreed to collaborate to develop an improved apparatus for administering radiation therapy to lung cancer patients. Pitt and Carnegie Mellon adopted a set of policy guidelines (“Guidelines”) to govern intellectual property rights and technology transfer procedures regarding products of that collaboration. In accordance with the Guidelines, the universities designated Pitt’s Technology Transfer Office to commercialize the inventions relevant to this case. Pitt then filed two patent applications covering those inventions, which issued as U.S. Patent Nos. 5,727,554 (“the '554 patent”) and 5,784,431 (“the '431 patent”). Pitt is the named assignee on those patents.
In April 2007, Pitt sued Varían for infringement of the '554 and '431 patents. On November 21, 2008, Varían moved for summary judgment based on its assertion that Pitt lacks standing to bring the action. Specifically, Varían alleged that Carnegie Mellon is a co-owner of the patents in suit, and that because Carnegie Mellon was not joined as a plaintiff, Pitt lacks standing to sue for patent infringement.
See Int’l Nutrition Co. v. Horphag Research Ltd.,
On March 8, 2008, the special master submitted his report and recommendation to the district court. The special master determined that Carnegie Mellon is a co-owner of the patents in suit and a necessary party to the action. The special master recommended that the district court grant Varian’s motion for summary judgment without prejudice to Pitt filing an amended complaint with Carnegie Mellon added as a plaintiff. In the alternative, the special master recommended that the district court vacate its previous order denying Pitt’s motion to join Carnegie Mellon. Varían objected to the special master’s recommendation, arguing that it was too late for Pitt to add Carnegie Mellon and urging the district court to dismiss the action with prejudice. The district court agreed with Varían, dismissing the action with prejudice on the grounds that Carnegie Mellon should have been joined when the action was commenced and that joinder at that point in the litigation would be unfair to Varian.
Univ. of Pittsburgh v. Varian Med. Sys., Inc.,
No. 07-CV-0491,
Pitt timely appealed to this court. We have jurisdiction over the district court’s final judgment pursuant to 28 U.S.C. § 1295(a)(1).
DISCUSSION
On appeal, Pitt argues that the district court erred in dismissing the action because Carnegie Mellon is not a co-owner of the patents and thus not a necessary party to the action. Pitt also asserts that the district court further erred when it designated its dismissal as a dismissal “with prejudice.” We find that argument persuasive. Namely, we hold that even if Carnegie Mellon is a necessary party, and even if dismissal is a proper consequence for Pitt’s failure to join Carnegie Mellon, the dismissal should have been without prejudice. Because that holding resolves the conflict before us, we decline to consider whether Carnegie Mellon is a necessary party to the action or whether dismissal would be the proper consequence if Pitt failed to join a necessary party. 1
I. Standard of Review
In reviewing a district court’s determination that a dismissal should be with prejudice, we apply the procedural law of the pertinent regional circuit.
See H.R. Techs., Inc. v. Astechnologies, Inc.,
In the present case, the district court gave two reasons for dismissing the case with prejudice: (1) because Pitt should have joined Carnegie Mellon at the commencement of its infringement action and (2) because Pitt’s attempt to join Carnegie Mellon was “untimely and unfair to defendant.”
Pitt I,
II. Joinder of the Patent’s Co-Owner
As this court has explained, if a co-owner of a patent wishes to sue for infringement, he must join the other co-owners in the action in order to avoid a dismissal for lack of standing.
Isr. Bio-Eng’g Project v. Amgen Inc.,
Federal Rule of Civil Procedure 12(b)(7) allows a district court to dismiss an action for failure to join a party under Rule 19. However, it is clear that a dismissal for failure to join a party is not an adjudication on the merits, and thus, should not have preclusive effect — i.e. such a dismissal should be without prejudice.
See Hughes v. United States,
Even if we ignore the party joinder issue and view the district court’s action as a simple dismissal for lack of standing, we still conclude that the district court abused its discretion. A dismissal for lack of standing is jurisdictional and is not an adjudication on the merits.
Media Techs. Licensing, LLC v. Upper Deck Co.,
Nonetheless, Varían argues that we should affirm the “with prejudice” nature of the district court’s dismissal because we have twice affirmed such a dismissal with prejudice. We disagree; the cases cited by Varían do not support dismissal with prejudice in this case. In
Sicom,
we affirmed the district court’s dismissal with prejudice because the action at issue “was Sicom’s second suit that was dismissed for lack of standing” and because “Sicom already had a chance to cure the defect and failed.”
Sicom Sys., Ltd. v. Agilent Techs., Inc.,
III. Dismissal with Prejudice as a Sanction
As a second reason for dismissing the action with prejudice, the district court explained that Pitt’s belated attempts to join Carnegie Mellon were “untimely and unfair” to Varían. However, the district court cited no authority indicating why dismissal with prejudice is a proper consequence for an “untimely and unfair” attempt to join a party. Varían argues the “with prejudice” nature of the dismissal was an appropriate sanction based on Pitt’s failure to follow the court’s scheduling order and Pitt’s “undue delay” during the litigation. To support its argument, Varían refers specifically to the district court’s statements that “Plaintiff obviously knew of CMU’s existence and its residual rights in the patents-in-suit, and chose not to join CMU,” that Pitt’s deci
*1334
sion not to join Carnegie Mellon appeared to be for “tactical” reasons, and that Pitt’s attempt to join Carnegie Mellon was “untimely and unfair” to Varian.
Pitt I,
Under Third Circuit law, dismissal with prejudice may be, although it rarely is, a proper sanction.
See, e.g., Venuto v. Witco Corp.,
[F]our factors which, while not exclusive, are relevant to a determination whether a dismissal with prejudice is appropriate: (1) the degree of the plaintiffs personal responsibility for the delay; (2) prejudice to the defendant occasioned by the delay; (3) any history that the plaintiff proceeded in a dilatory manner; and (4) the effectiveness of sanctions other than dismissal.
Madesky v. Campbell,
In the present case, the district court’s opinion simply fails to discuss any of -the relevant factors. Although
the
opinion states that it finds dismissal to be more appropriate than adding Carnegie Mellon to the action,
Pitt I,
Although the district court’s statements do relate to three of the
Donnelly
factors — namely Pitt’s responsibility for the delay, prejudice to Varian, and Pitt’s history of delay — the district court provided no explanation or citations to the record to support its statements. The district court likewise provided no explanation when it initially denied Pitt’s motion to join Carnegie Mellon.
See
Order Denying Joinder. On occasion, we may affirm the district court’s judgment in the absence of a recitation of its reasons for entering the judgment because “[w]e sit to review judgments, not opinions.”
See Stratoflex, Inc. v. Aeroquip Corp.,
We have considered the parties’ remaining arguments, including Varian’s arguments in support of its cross appeal, and we find them unpersuasive.
CONCLUSION
Because the district court’s dismissal of Pitt’s infringement action with prejudice was an abuse of discretion under all rationales proffered by Varian, we vacate the dismissal and remand with instructions to designate the dismissal as without prejudice to Pitt’s ability to establish standing through the joinder of Carnegie Mellon or the assignment of whatever rights Carnegie Mellon may have in the patents in suit.
VACATED AND REMANDED
COSTS
No costs.
Notes
. At oral argument, Pitt admitted that should we decide in its favor on the issue of whether the district court erred by designating that the dismissal is "with prejudice,” that holding resolves this case such that we need not reach the additional issues presented by Pitt. Recording of Oral Argument at 41:15-41:35, Univ. of Pittsburgh v. Varian Med. Sys., Inc., No.2008-1441, -1454 (Fed.Cir. Mar. 5, 2009), available at http://oralarguments.cafc. uscourts.gov.
