EISAI R&D MANAGEMENT CO., LTD. v. DR. REDDYS LABORATORIES, INC.

CourtDistrict Court, D. New Jersey
DecidedNovember 7, 2023
Docket2:22-cv-05950
StatusUnknown

This text of EISAI R&D MANAGEMENT CO., LTD. v. DR. REDDYS LABORATORIES, INC. (EISAI R&D MANAGEMENT CO., LTD. v. DR. REDDYS LABORATORIES, INC.) is published on Counsel Stack Legal Research, covering District Court, D. New Jersey primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
EISAI R&D MANAGEMENT CO., LTD. v. DR. REDDYS LABORATORIES, INC., (D.N.J. 2023).

Opinion

UNITED STATES DISTRICT COURT DISTRICT OF NEW JERSEY _______________________________________ : EISAI R&D MANAGEMENT CO., LTD., : Civil Action No. 22-5950 (SRC) EISAI INC., and EISAI CO., LTD., : : OPINION Plaintiffs, : : v. : : DR. REDDY’S LABORATORIES, INC. : and DR. REDDY’S LABORATORIES, LTD, : : Defendants. : _______________________________________:

CHESLER, U.S.D.J. This matter has come before the Court on the motion to dismiss all claims and counterclaims in this case for lack of subject matter jurisdiction, pursuant to Federal Rules of Civil Procedure 12(b)(1) and 12(h)(3), by Plaintiffs Eisai R&D Management Co., Ltd., Eisai Inc., and Eisai Co., Ltd. (collectively, “Eisai.”) Defendants Dr. Reddys Laboratories, Inc. and Dr. Reddys Laboratories, Ltd. (collectively, “DRL”) have opposed the motion. On September 28, 2023, the Court held oral argument on the motion. For the reasons that follow, the motion will be granted. This case arises out of a patent infringement dispute under the Hatch-Waxman Act between Eisai, which owns two patents covering its Halaven® pharmaceutical product, and DRL, which has filed ANDA No. 217473, seeking to make and sell a generic version of Halaven®. The following facts are undisputed. Halaven® (eribulin mesylate) is covered by two patents listed in the Orange Book, U.S. Patent No. 6,214,865 (the “‘865 patent”), which expires on January 20, 2024, and U.S. Patent No. RE46,965 (the “‘965 patent”), which expires in 2027. Non-party Sandoz filed an ANDA on December 20, 2019; Defendant DRL filed an ANDA in June of 2022. Both Sandoz and DRL filed paragraph III certifications for the ‘865 patent and paragraph IV certifications for the ‘965 patent. Neither generic company can enter the market until the expiration of the ‘865 patent in this coming January; the parties appear to have no dispute about the ‘865 patent, raise no arguments about it, and it plays no role in the

discussion. Eisai now moves to dismiss all claims and counterclaims in the case on the ground that this Court lacks subject matter jurisdiction. As to all claims in the Complaint, Eisai contends that the Court lacks subject matter jurisdiction because there is no justiciable case or controversy, on account of a covenant not to sue that Eisai has given to DRL. Eisai argues that the covenant divests this Court of subject matter jurisdiction over all claims in the Complaint because there is no longer any case or controversy over them. DRL’s Answer asserts one counterclaim for declaratory judgment of non-infringement, unenforceability, and/or invalidity of the ‘965 patent. As to the counterclaim, Eisai also contends that the Court lacks subject matter jurisdiction

because there is no justiciable case or controversy, but bases this not on the covenant but on challenges to the supporting factual allegations in the Answer, contending that they are speculative and insufficient to support independent subject matter jurisdiction. The parties dispute who bears the burden of proof on this motion. Eisai contends that the proponent of jurisdiction bears the burden of establishing its existence, citing Steel Co. v. Citizens for a Better Env’t, 523 U.S. 83, 104 (1998) (“the party invoking federal jurisdiction bears the burden of establishing its existence.”) DRL argues that Plaintiff’s motion should be understood as a motion to dismiss for mootness, and that, on such a motion, the movant bears a

2 heavy burden of proof. Plaintiff’s reply brief does not respond to DRL’s argument about mootness. So who is right? In the context of this motion, both parties are right, in part, because the motion consists of two distinguishable parts: the motion to dismiss the Complaint, and the motion to dismiss the counterclaim. The Court agrees with DRL that the motion to dismiss the Complaint falls within

the scope of the law of dismissal for mootness, and that the law places on Plaintiff the heavy burden, just as DRL contends, but that Eisai readily carries that burden. As will be explained further below, there is no genuine dispute between the parties about whether the revised covenant not to sue has mooted Plaintiff’s claims in the Complaint: it has done so, and DRL all but admitted it at oral argument. The law of mootness does not apply to Plaintiff’s motion to dismiss the counterclaim, however: Eisai does not argue that the existence of the revised covenant has terminated the Court’s subject matter jurisdiction over the counterclaim. Instead, Eisai moves to dismiss the counterclaim through a factual challenge under Rule 12(b)(1), and the ordinary legal standards to

be applied to such challenges apply, including that the burden of proof of federal subject matter jurisdiction is borne by the proponent of jurisdiction, the counterclaim plaintiff. I. The motion to dismiss the Complaint Shortly after DRL filed its ANDA application in 2022, Eisai filed the Complaint which initiated this action. The Complaint asserts one count of patent infringement of the ‘965 patent. Subsequently, Eisai delivered to DRL an executed covenant not to sue for infringement of the ‘965 patent. Eisai now moves to dismiss the Complaint, arguing that the Court lacks subject matter jurisdiction over the case because the covenant not to sue has eliminated any justiciable

3 case or controversy. DRL’s opposition complained that Eisai’s tendered covenant not to sue was limited and conditional. Shortly before submitting its reply brief, Eisai issued a revised covenant not to sue which, it stated, made its promise not to sue for infringement of the ‘965 patent unconditional. At the hearing on this motion, the Court asked counsel for DRL whether there were any defects

in the revised covenant not to sue, and counsel replied that there were none. DRL does not argue that any controversy remains over the single infringement claim in the Complaint. Eisai contends that the motion to dismiss the Complaint, pursuant to Rule 12(b)(1), should be decided under the law of Rule 12(b)(1). DRL disagrees, arguing that “Eisai misstates the applicable burden of persuasion.” (Def.’s Opp. Br. at 12.) DRL argues that the motion to dismiss the Complaint should be decided by applying the legal framework of mootness, which places upon the movant a “heavy burden of persuasion.” The Court does not perceive this as a black-or-white choice: while the “voluntary cessation” mootness cases cited by DRL appear inapt,1 ArcelorMittal is relevant but does less for DRL than Defendant suggests. ArcelorMittal

did involve a plaintiff offering a covenant not to sue, a motion to dismiss declaratory judgment counterclaims for lack of subject matter jurisdiction, and a mootness argument. ArcelorMittal v. AK Steel Corp., 856 F.3d 1365, 1367-1369 (Fed. Cir. 2017). The Federal Circuit held that the

1 For example, DRL cites Friends of the Earth for the proposition that, “ordinarily, voluntary cessation does not suffice to moot a case.” (Def.’s Opp. Br. at 12.) What the Supreme Court actually wrote is: “A defendant’s voluntary cessation of allegedly unlawful conduct ordinarily does not suffice to moot a case.” Friends of the Earth, Inc. v. Laidlaw Envtl. Servs. (TOC), Inc., 528 U.S. 167, 174 (2000). The present circumstances do not involve a defendant’s voluntary cessation of allegedly unlawful conduct; they are entirely different. The “voluntary cessation” of the defendant in the cases cited by DRL had nothing to do with a plaintiff’s voluntary cessation of litigation.

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Bluebook (online)
EISAI R&D MANAGEMENT CO., LTD. v. DR. REDDYS LABORATORIES, INC., Counsel Stack Legal Research, https://law.counselstack.com/opinion/eisai-rd-management-co-ltd-v-dr-reddys-laboratories-inc-njd-2023.