Acuitas Therapeutics Inc. v. Alnylam Pharmaceuticals, Inc.

CourtDistrict Court, D. Delaware
DecidedJuly 1, 2025
Docket1:24-cv-00816
StatusUnknown

This text of Acuitas Therapeutics Inc. v. Alnylam Pharmaceuticals, Inc. (Acuitas Therapeutics Inc. v. Alnylam Pharmaceuticals, Inc.) is published on Counsel Stack Legal Research, covering District Court, D. Delaware primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Acuitas Therapeutics Inc. v. Alnylam Pharmaceuticals, Inc., (D. Del. 2025).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF DELAWARE ACUITAS THERAPEUTICS INC., MICHAEL J. HOPE, STEVEN M. ANSELL, AND XINYAO DU, Plaintiffs, Civil Action No. 24-816-CFC Vv. ALNYLAM PHARMACEUTICALS, INC., Defendant.

Melanie K. Sharp, James L. Higgins, and Stephanie N. Vangellow, YOUNG CONAWAY STARGATT & TAYLOR, LLP, Wilmington, Delaware; Nicholas Groombridge, Eric Alan Stone, Josephine Young, Allison C. Penfield, Ariella Barel, Nisha Gera, and Chih-wei Wu, GROOMBRIDGE, WU, BAUGHMAN & STONE LLP, New York, New York; Saurabh Gupta, GROOMBRIDGE, WU, BAUGHMAN & STONE LLP, Washington, District of Columbia Counsel for Plaintiffs Ethan H. Townsend, MCDERMOTT WILL & EMERY LLP, Wilmington, Delaware; William G. Gaede, II], MCDERMOTT WILL & EMERY LLP, San Francisco, California; Sarah Chapin Columbia, MCDERMOTT WILL & EMERY LLP, Boston, Massachusetts; Mandy H. Kim, MCDERMOTT WILL & EMERY LLP, Irvine, California; David J. Tobin, MCDERMOTT WILL & EMERY LLP, Dallas, Texas Counsel for Defendant MEMORANDUM OPINION

July 1, 2025 Wilmington, Delaware

G . 4h. TA CHIEF JUDGE Plaintiffs Acuitas Therapeutics Inc. (Acuitas), Michael J. Hope, Steven M. Ansell, and Xinyao Du have sued Defendant Alnylam Pharmaceuticals, Inc. (Alnylam) under 35 U.S.C. § 256 for a judgment ordering the United States Patent & Trademark Office (PTO) to correct the erroneous omission of Hope, Ansell, and Du as named inventors of seven patents owned by Alnylam. The patents, which I will refer to collectively as “the Alnylam Patents,” are U.S. Patent Nos. 11,246,933 (the #933 Patent), 11,382,979 (the #979 Patent), 11,590,229 (the #229 Patent), 11,612,657 (the #657 Patent), 11,633,479 (the #479 Patent), 11,633,480 (the #480 Patent), and 11,679,158 (the #158 Patent). D.I. 1. Each of the Alnylam Patents names the same nine individuals as inventors. See D.I. 1 [4 54, 67, 81, 93, 105, 117, 131. None of the Alnylam Patents identifies Hope, Ansell, or Du as an inventor. See D.I. 1 49 63, 77, 89, 101, 113, 127, 140. According to the Complaint, however, “[e]ach claim” of the Alnylam Patents “recites elements that cover inventions that Drs. Hope, Ansell, and Du conceived of and reduced to practice.” D.I. 1 9958, 71, 85, 97, 109, 121, 135. Pending before me is Alnylam’s motion to dismiss the Complaint pursuant to Federal Rule of Civil Procedure 12(b)(1) for lack of jurisdiction and Rule 12(b)(6) for failure to state a claim upon which relief can be granted. D.I. 12.

Because the motion challenges only the sufficiency of the pleaded allegations in the Complaint, I accept as true the factual allegations in the Complaint and draw all reasonable inferences from those allegations in Plaintiffs’ favor. See In re Horizon Healthcare Services Inc. Data Breach Litigation, 846 F.3d 625, 633 (3d Cir. 2017) (“In reviewing facial challenges to standing [brought under Rule 12(b)(1)], [courts] apply the same standard as on review of a motion to dismiss under Rule 12(b)(6).”); Buck v. Hampton Twp. Sch. Dist., 452 F.3d 256, 260 (3d Cir. 2006) (“In reviewing a motion to dismiss [brought pursuant to Rule 12(b)(6)], [courts] accept all factual allegations in the complaint as true and view them in the light most favorable to the plaintiff.’’). I. Alnylam argues first that “[t]he Complaint should be dismissed [pursuant to Rule 12(b)(1)] because the requirements for subject matter jurisdiction under 35 U.S.C. § 256[(b)] have not been met.” D.I. 13 at 6. According to Alnylam, the Complaint does not meet § 256’s requirements because it “does not plead that notice was provided to any of the nine named inventors and it does not name any of the nine inventors as parties.” D.I. 13 at 6 (italics removed and citation omitted). Section 256(b), however, has no such pleading or naming requirements. More to the point, § 256 neither creates jurisdiction nor imposes jurisdictional requirements. Section 256 creates a cause of action. See MCV, Inc. v. King-Seeley

Thermos Co., 870 F.2d 1568, 1570 (Fed. Cir. 1989) (“[A] cause of action is created by section 256 which explicitly authorizes judicial resolution of co-inventorship contests over issued patents.”), overruled on other grounds by A.C. Aukerman Co. v. R.L. Chaides Constr. Co., 960 F.2d 1020, 1042 (Fed. Cir. 1992) (en banc), abrogated on other grounds by SCA Hygiene Prods. Aktiebolag v. First Quality Baby Prods., LLC, 580 U.S. 328, 332 (2017)'; id. at 1571 (“MCV’s cause of action is for correction of inventorship . . . and is created by section 256.”). Section 1338(a) creates this Court’s jurisdiction over this action. See 35 U.S.C. § 1338(a) (“The district courts shall have original jurisdiction of any civil action arising under any Act of Congress relating to patents ...”). Section 256(b) reads: The error of omitting inventors or naming persons who are not inventors shall not invalidate the patent in which such error occurred if it can be corrected as provided in this section. The court before which such matter is called in question may order correction of the patent on notice and hearing of all parties concerned and the Director shall issue a certificate accordingly. 35 U.S.C. § 256(b). Nothing in the statute requires a plaintiff to give notice to any party before filing a complaint to correct the omission of an inventor in a patent, let

' The Federal Circuit noted in Ferring B.V. v. Allergan, Inc., 980 F.3d 841, 851 (Fed. Cir. 2020) that “[t]his court subsequently overruled” MCV’s application of “a formulation of equitable estoppel” in A.C. Aukerman Co.

alone to plead in the complaint that such notice had been provided. Nor does anything in the statute require a plaintiff to identify any named inventors in the patent as parties in the complaint. The statute merely provides that the “matter” of

an “error of omitting inventors or naming persons who are not inventors” can be brought in a district court, and the plain language of the statute requires only that notice of “such [a] matter” and an opportunity to be heard be given to all concerned parties before the court orders the PTO to correct the alleged error. Alnylam insists that § 256’s notice and hearing requirements are “jurisdictional requirements” that must be established before the case can proceed. D.I. 19 at 2; see also D.I. 13 at 4 (“For an action under 35 U.S.C. § 256, subject matter jurisdiction requires [sic] that ‘notice’ be provided to ‘all parties concerned.””). In support of this argument, Alnylam cites the following two sentences from MCY: The statute [Section 256] prescribes only one prerequisite to judicial action: all parties must be given notice and an opportunity to be heard.

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Bluebook (online)
Acuitas Therapeutics Inc. v. Alnylam Pharmaceuticals, Inc., Counsel Stack Legal Research, https://law.counselstack.com/opinion/acuitas-therapeutics-inc-v-alnylam-pharmaceuticals-inc-ded-2025.