Patent 11703443

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.

  • IPR2025-01319IPRfiled Jul 17, 2025vs. Cytek Biosciences, Inc.Discretionary Denial

Cached for 24 hours. Status strings are sourced verbatim from the PTAB API; the colored badge is our heuristic classification.

Cases on file (2)

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Specific litigation cases in our database that name US patent 11703443. The free-form analysis below may also discuss cases beyond this list.

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

✓ Generated

Known litigation involving US patent 11703443 is as follows:

  1. United States District Court for the District of Delaware

    • Plaintiff(s): Beckman Coulter, Inc.
    • Defendant(s): Cytek Biosciences, Inc.
    • Jurisdiction: District of Delaware
    • Case Number: 1:24-cv-00945-CFC-EGT
    • Filing Date: The case number indicates a 2024 filing, and discussions from November 2024 indicate the complaint was filed approximately 20-21 months before a projected trial date, placing the filing around early 2024.
    • Status: Ongoing. As of May 28, 2025, the parties were engaged in claim construction discussions, with a trial estimated approximately 20-23 months from the complaint's filing. US Patent 11703443 is one of the asserted patents in this case, referred to as the "'443 Patent."

  2. Patent Trial and Appeal Board (PTAB)

    • Case Number: IPR2025-01319
    • Status: Pending.
    • Plaintiff(s): Not specified in the provided information.
    • Defendant(s): Not specified in the provided information.
    • Jurisdiction: Patent Trial and Appeal Board (PTAB) of the USPTO.
    • Filing Date: The case number indicates a 2025 filing.

  3. Worldwide Family Litigation (Darts-ip)

    • Jurisdiction: Not specifically identified, but categorized as "First worldwide family litigation filed" on the Google Patents page, linking to Darts-ip.
    • Case Number: Not specifically identified. The Darts-ip link refers to patent family 52994346, which includes US11703443B2.
    • Filing Date: Not specified.
    • Status: General information on Darts-ip indicates it tracks global patent litigation, but specific details for this patent within their database are not publicly accessible without an account or report order. Therefore, further specific details about this worldwide litigation, including plaintiffs, defendants, and outcome, are not known with the available information.

Generated 5/20/2026, 6:48:15 AM