Patent 10865400
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
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PTAB activity (1)
AIA trial proceedings — IPR, PGR, CBM — filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced directly from the PTAB Trial API.
- IPR2026-00312IPRfiled Mar 23, 2026vs. Merck Sharp & Dohme LLCPending
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Cases on file (2)
Group view →Specific litigation cases in our database that name US patent 10865400. The free-form analysis below may also discuss cases beyond this list.
- Merck Sharp & Dohme LLC v. Halozyme Inc.filed Mar 23, 2026IPR2026-00312Patent Trial and Appeal Board (PTAB)pending
Defendants: Halozyme Inc.
- Halozyme, Inc. v. Merck Sharp & Dohme Corp. et al.filed Apr 24, 20252:25-cv-03179 (ES) (JRA)United States District Court for the District of New Jerseypending
Defendants: Merck Sharp & Dohme Corp. and Merck Sharp and Dohme LLC
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Known litigation involving US patent 10865400 includes the following:
District Court Litigation
- Plaintiff(s): Halozyme, Inc.
- Defendant(s): Merck Sharp & Dohme Corp. (now Merck Sharp and Dohme LLC)
- Jurisdiction: United States District Court for the District of New Jersey
- Case Number: 2:25-cv-03179 (ES) (JRA)
- Filing Date: April 24, 2025
- Outcome or Current Status: This case is pending. Halozyme, Inc. filed the action, and Merck Sharp and Dohme LLC was later substituted as the defendant. Merck Sharp and Dohme LLC was granted 60 days from May 15, 2025, to respond to the complaint.
PTAB Inter Partes Review (IPR)
- Petitioner: Merck Sharp & Dohme LLC
- Patent Owner: Halozyme Inc.
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Case Number: IPR2026-00312
- Filing Date: March 23, 2026
- Outcome or Current Status: The case is pending.
Specific details regarding the "First worldwide family litigation filed" for US10865400, as mentioned on the Google Patents page, are not available from the provided search results. The Darts-ip links offered general information about their patent case law database but did not provide specific case numbers, parties, or outcomes for this particular patent family.
Generated 5/29/2026, 5:54:50 PM