Patent 11668420

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.

  • IPR2025-01539IPRfiled Oct 6, 2025vs. Liberty Energy Inc. et al.Discretionary Denial

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Cases on file (1)

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Specific litigation cases in our database that name US patent 11668420. 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

US patent 11668420 is involved in at least one litigation case and one PTAB proceeding.

Known Litigation:

  1. Plaintiff(s): PROFRAC SERVICES, LLC; PROFRAC MANUFACTURING, LLC; U.S. WELL SERVICES, LLC; U.S. WELL SERVICES HOLDINGS, LLC

    • Defendant(s): LIBERTY ENERGY SERVICES, LLC, LIBERTY ENERGY, INC., LIBERTY ADVANCED EQUIPMENT TECHNOLOGIES LLC
    • Jurisdiction: United States District Court for the Eastern District of Texas, Marshall Division
    • Case Number: 2:25-cv-00522-JRG-RSP
    • Filing Date: The proposed docket control order and proposed discovery order were filed on June 24, 2025, and invalidity contentions were to be complied with by August 21, 2025.
    • Outcome/Current Status: The case is ongoing, with filings related to a proposed docket control order, discovery order, and invalidity contentions. The patent owner is U.S. Well Services, LLC.

  2. Petitioner: Unified Patents

    • Patent Owner: U.S. Well Services LLC
    • Jurisdiction: Patent Trial and Appeal Board (PTAB)
    • Case Number: IPR2025-01539
    • Filing Date: Not explicitly stated, but the case was filed in 2025.
    • Outcome/Current Status: Not Instituted - Procedural

Generated 5/25/2026, 12:47:31 AM