Explore the details of the HALOZYME, INC. v. MERCK SHARP & DOHME CORP. case under case number 2:2025cv03179 . Review key information about the parties involved, the patents in question, and the docket entries.

Case Details

Case Number
2:2025cv03179
Filing Date
Apr 24, 2025
Cause of Action
-
Status
OPEN
Case Link
View Case
Nature of Suit
830

Plaintiffs

The following plaintiffs are involved in this case, with their respective legal representatives for the case.

CompanyRepresented By
HALOZYME, INC.
WALSH PIZZI O'REILLY FALANGA LLP

Defendants

The following defendants are involved in this case, with their respective legal representatives for the case.

CompanyRepresented By
MERCK SHARP & DOHME CORP. -
MERCK SHARP AND DOHME LLC
Gibbons P.C.
GIBBONS PC
DECHERT LLP

Patents Involved in the Case

This case involves 17 patents, each of which is central to the dispute. These patents may be subject to claims of infringement, challenges to their validity, or other issues concerning their scope and enforcement.

Application NumberPatent Number
15226489US10865400B2
16824572US11041149B1
16912590US11066656B2
17327568US12091692B2
17327586US12037618B2
18064886
18066960US12054758B2
18068218US12060590B1
18068327US12123035B2
18068418US12110520B2
18338189US11952600B2
18339829US12077791B2
18340482US12018298B2
18340802US12152262B2
18599428US12104185B2
18659215US12195773B2
18778554US12264345B1

Docket Entries

The Docket Entries section provides a chronological list of all significant filings and court actions in this case.

DateDocket EntryType

Set alerts for critical docket entry

May 20, 2025NOTICE of Appearance by MICHAEL V. CARACAPPA on behalf of MERCK SHARP AND DOHME LLC (CARACAPPA, MICHAEL) (Entered: 05/20/2025)NOTICE
May 20, 2025NOTICE of Appearance by CHARLES H. CHEVALIER on behalf of MERCK SHARP AND DOHME LLC (CHEVALIER, CHARLES) (Entered: 05/20/2025)NOTICE
May 20, 2025NOTICE of Appearance by BRIAN M. GOLDBERG on behalf of MERCK SHARP AND DOHME LLC (GOLDBERG, BRIAN) (Entered: 05/20/2025)NOTICE
May 15, 2025STIPULATION AND ORDER SUBSTITUTING PARTY, AFFECTING SERVICE, AND SETTING DEADLINE TO ANSWER OR RESPOND TO COMPLAINT. Signed by Magistrate Judge Jose R. Almonte on 5/15/2025. (mj) (Entered: 05/16/2025)STIPULATION AND ORDER SUBSTITUTING PARTY
May 14, 2025Letter from Liza M. Walsh to the Honorable Jose R. Almonte, U.S.M.J.. (Attachments: # 1 Text of Proposed Order)(WALSH, LIZA) (Entered: 05/14/2025)-
Apr 28, 2025SUMMONS ISSUED as to MERCK SHARP & DOHME CORP.. Attached is the official court Summons, please fill out Defendant and Plaintiffs attorney information and serve. (wh) (Entered: 04/28/2025)SUMMONS ISSUED
Apr 28, 2025AO120 Patent Form filed. (Attachments: # 1 See attached Complaint, # 2 Exhibit A-D, # 3 Exhibit E, # 4 Exhibit F, # 5 Exhibit G-H, # 6 Exhibit I-J, # 7 Exhibit K-L, # 8 Exhibit M-N, # 9 Exhibit O-P, # 10 Exhibit Q-R, # 11 Exhibit S-Z, # 12 Exhibit AA-EE, # 13 AO 120 Form from Plaintiff) (wh) (Entered: 04/28/2025)AO120
Apr 24, 2025NOTICE of Appearance by LAUREN RUTH MALAKOFF on behalf of HALOZYME, INC. (MALAKOFF, LAUREN) (Entered: 04/24/2025)NOTICE
Apr 24, 2025NOTICE of Appearance by KATELYN O'REILLY on behalf of HALOZYME, INC. (O'REILLY, KATELYN) (Entered: 04/24/2025)NOTICE
Apr 24, 2025Corporate Disclosure Statement by HALOZYME, INC.. (WALSH, LIZA) (Entered: 04/24/2025)-
Apr 24, 2025COMPLAINT against MERCK SHARP & DOHME CORP. ( Filing and Admin fee $ 405 receipt number ANJDC-16196834) with JURY DEMAND, filed by HALOZYME, INC.. (Attachments: # 1 Exhibit A-D, # 2 Exhibit E, # 3 Exhibit F, # 4 Exhibit G-H, # 5 Exhibit I-J, # 6 Exhibit K-L, # 7 Exhibit M-N, # 8 Exhibit O-P, # 9 Exhibit Q-R, # 10 Exhibit S-Z, # 11 Exhibit AA-EE, # 12 AO 120 Forms, # 13 Civil Cover Sheet)(WALSH, LIZA) (Entered: 04/24/2025)COMPLAINT