Patent 8891347

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.

  • IPR2025-01496IPRfiled Aug 29, 2025vs. Apple 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 (1)

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Specific litigation cases in our database that name US patent 8891347. 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

As a patent analyst, I've reviewed the provided patent text for US8891347, including the litigation information fetched on 2026-05-14. While the current analysis date is April 26, 2026, the litigation data presented reflects a status as of May 14, 2026, which will be used as the basis for this report.

Known litigation involving US patent 8891347, based on the provided information, includes:

  1. US District Court Case

    • Jurisdiction: Texas Western District Court
    • Case Number: 7:24-cv-00232
    • Filing Date: Not explicitly stated in the provided text, but implied to be in 2024.
    • Plaintiff(s): Not explicitly stated in the provided text, but likely Cobblestone Wireless LLC, the current assignee.
    • Defendant(s): Not explicitly stated in the provided text.
    • Outcome/Current Status: Active, described as "Critical" as of the fetch date.

  2. PTAB Inter Partes Review (IPR)

    • Case Number: IPR2024-00136
    • Filing Date: Not explicitly stated in the provided text, but implied to be in 2024.
    • Plaintiff(s) (Petitioner): Not explicitly stated in the provided text.
    • Defendant(s) (Patent Owner): Not explicitly stated in the provided text, but likely Cobblestone Wireless LLC.
    • Outcome/Current Status: Not Instituted - Procedural.

  3. PTAB Inter Partes Review (IPR)

    • Case Number: IPR2025-01496
    • Filing Date: Not explicitly stated in the provided text, but implied to be in 2025.
    • Plaintiff(s) (Petitioner): Not explicitly stated in the provided text.
    • Defendant(s) (Patent Owner): Not explicitly stated in the provided text, but likely Cobblestone Wireless LLC.
    • Outcome/Current Status: Not Instituted - Procedural.

  4. PTAB Inter Partes Review (IPR)

    • Case Number: IPR2024-00319
    • Filing Date: Not explicitly stated in the provided text, but implied to be in 2024.
    • Plaintiff(s) (Petitioner): Not explicitly stated in the provided text.
    • Defendant(s) (Patent Owner): Not explicitly stated in the provided text, but likely Cobblestone Wireless LLC.
    • Outcome/Current Status: Settlement.

  5. US District Court Case

    • Jurisdiction: Texas Eastern District Court
    • Case Number: 2:22-cv-00477
    • Filing Date: Not explicitly stated in the provided text, but implied to be in 2022.
    • Plaintiff(s): Not explicitly stated in the provided text, but likely Cobblestone Wireless LLC, the current assignee.
    • Defendant(s): Not explicitly stated in the provided text.
    • Outcome/Current Status: Litigation, ongoing as of the fetch date.

  6. US District Court Case

    • Jurisdiction: Texas Eastern District Court
    • Case Number: 2:23-cv-00285
    • Filing Date: Not explicitly stated in the provided text, but implied to be in 2023.
    • Plaintiff(s): Not explicitly stated in the provided text, but likely Cobblestone Wireless LLC.
    • Defendant(s): Not explicitly stated in the provided text.
    • Outcome/Current Status: Litigation, ongoing as of the fetch date.

  7. US District Court Case

    • Jurisdiction: Texas Eastern District Court
    • Case Number: 2:22-cv-00478
    • Filing Date: Not explicitly stated in the provided text, but implied to be in 2022.
    • Plaintiff(s): Not explicitly stated in the provided text, but likely Cobblestone Wireless LLC.
    • Defendant(s): Not explicitly stated in the provided text.
    • Outcome/Current Status: Litigation, ongoing as of the fetch date.

  8. US District Court Case

    • Jurisdiction: Illinois Northern District Court
    • Case Number: 1:24-cv-08726
    • Filing Date: Not explicitly stated in the provided text, but implied to be in 2024.
    • Plaintiff(s): Not explicitly stated in the provided text, but likely Cobblestone Wireless LLC.
    • Defendant(s): Not explicitly stated in the provided text.
    • Outcome/Current Status: Litigation, ongoing as of the fetch date.

  9. US District Court Case

    • Jurisdiction: Texas Eastern District Court
    • Case Number: 2:22-cv-00474
    • Filing Date: Not explicitly stated in the provided text, but implied to be in 2022.
    • Plaintiff(s): Not explicitly stated in the provided text, but likely Cobblestone Wireless LLC.
    • Defendant(s): Not explicitly stated in the provided text.
    • Outcome/Current Status: Litigation, ongoing as of the fetch date.

The provided Google Patents data also mentions "First worldwide family litigation filed" with a link to Darts-ip, which indicates broader litigation activity for the patent family, but does not provide specific case details for US8891347 in the snippet.

Generated 5/23/2026, 6:46:36 AM