Patent 11969333
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.
- IPR2025-01021IPRfiled May 19, 2025vs. Imperative Care, Inc.Trial Instituted
Cached for 24 hours. Status strings are sourced verbatim from the PTAB API; the colored badge is our heuristic classification.
Cases on file (1)
Group view →Specific litigation cases in our database that name US patent 11969333. The free-form analysis below may also discuss cases beyond this list.
- Inari Medical, Inc. v. Imperative Care, Inc. et al.filed May 22, 20245:24-cv-03117-EKLU.S. District Court for the Northern District of CaliforniaActive
Defendants: Imperative Care, Inc. and Truvic Medical, Inc.
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Based on my review of litigation records as of May 14, 2026, U.S. Patent No. 11,969,333 ('333 patent) is currently involved in the following legal actions:
District Court Litigation
Case 1:
- Case Caption: Inari Medical, Inc. v. Imperative Care, Inc., et al.
- Case Number: 5:24-cv-03117-EKL
- Jurisdiction: U.S. District Court for the Northern District of California
- Plaintiff: Inari Medical, Inc.
- Defendants: Imperative Care, Inc. and Truvic Medical, Inc.
- Filing Date: May 22, 2024
- Status: Active. Inari's motion for a preliminary injunction was denied on September 29, 2025, with the court citing that Imperative Care raised substantial questions about the patent's validity. The case has been stayed until at least February 4, 2026, pending the outcome of multiple Inter Partes Review (IPR) proceedings before the Patent Trial and Appeal Board (PTAB). Inari has asserted claims 5 and 24 of the '333 patent, which relate to a blood return and filtration system.
Case 2:
- Case Caption: Inari Medical, Inc. v. Imperative Care, Inc.
- Case Number: 3:24-cv-03117
- Jurisdiction: U.S. District Court for the Northern District of California
- Plaintiff: Inari Medical, Inc.
- Defendant: Imperative Care, Inc.
- Filing Date: 2024
- Status: This case appears to be related to the
5:24-cv-03117action and is subject to the same stay pending IPR proceedings.
Patent Trial and Appeal Board (PTAB) Proceedings
In parallel with the district court cases, the validity of the '333 patent, among others, is being challenged at the U.S. Patent and Trademark Office's Patent Trial and Appeal Board.
Case Number: IPR2025-01021
Parties: Information on the petitioner was not available in the provided search results. Inari Medical, Inc. is the Patent Owner.
Filing Date: Unavailable in search results.
Status: Pending - Instituted. The PTAB has determined that there is a reasonable likelihood that the petitioner will prevail in showing the unpatentability of at least one of the challenged claims, and a trial is proceeding.
Case Number: IPR2025-01264
Petitioner: Imperative Care, Inc.
Patent Owner: Inari Medical, Inc.
Filing Date: Unavailable in search results.
Status: A petition for Inter Partes Review has been filed. The petitioner is challenging 29 claims of a related patent, citing prior art for disclosing a pre-charged vacuum method.
These proceedings indicate that US Patent 11,969,333 is the subject of significant and ongoing legal disputes concerning its validity and alleged infringement.
Generated 5/14/2026, 12:48:01 PM