Patent 7398209

Litigation summary

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

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PTAB activity (2)

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.

  • IPR2025-01334IPRfiled Aug 19, 2025vs. Meta Platforms, Inc.Discretionary Denial
  • IPR2025-01351IPRfiled Aug 7, 2025vs. Microsoft CorporationTerminated-Settled

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 7398209. 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

Here is a list of known litigation involving US patent 7398209, based on information from the Google Patents entry for US7398209 and supplementary searches for specific case numbers on Unified Patents.

Litigation involving US Patent 7398209:

  1. Case: 2:24-cv-01067

    • Plaintiff(s): Not explicitly stated in the summary, but typically the patent owner in an infringement suit.
    • Defendant(s): Not explicitly stated in the summary.
    • Jurisdiction: Texas Eastern District Court
    • Case Number: 2:24-cv-01067 [cite: US7398209B2 - Google Patents]
    • Filing Date: Not explicitly stated in the summary.
    • Outcome/Current Status: Critical, implying an active or significant case. [cite: US7398209B2 - Google Patents]

  2. Case: 2:26-cv-00810

    • Plaintiff(s): Not explicitly stated in the summary.
    • Defendant(s): Not explicitly stated in the summary.
    • Jurisdiction: Washington Western District Court
    • Case Number: 2:26-cv-00810 [cite: US7398209B2 - Google Patents]
    • Filing Date: Not explicitly stated in the summary.
    • Outcome/Current Status: Litigation (status not detailed beyond this). [cite: US7398209B2 - Google Patents]

  3. Case: 1:23-cv-00378

    • Plaintiff(s): Not explicitly stated in the summary.
    • Defendant(s): Not explicitly stated in the summary.
    • Jurisdiction: Delaware District Court
    • Case Number: 1:23-cv-00378 [cite: US7398209B2 - Google Patents]
    • Filing Date: Not explicitly stated in the summary.
    • Outcome/Current Status: Litigation (status not detailed beyond this). [cite: US7398209B2 - Google Patents]

  4. Case: 7:25-cv-00060

    • Plaintiff(s): Not explicitly stated in the summary.
    • Defendant(s): Not explicitly stated in the summary.
    • Jurisdiction: Texas Western District Court
    • Case Number: 7:25-cv-00060 [cite: US7398209B2 - Google Patents]
    • Filing Date: Not explicitly stated in the summary.
    • Outcome/Current Status: Litigation (status not detailed beyond this). [cite: US7398209B2 - Google Patents]

  5. Case: IPR2025-01334

    • Plaintiff(s): Petitioner (not named in summary, typically challenging patent validity).
    • Defendant(s): Patent Owner (Dialect LLC is the current assignee of US7398209). [cite: US7398209B2 - Google Patents]
    • Jurisdiction: Patent Trial and Appeal Board (PTAB)
    • Case Number: IPR2025-01334 [cite: US7398209B2 - Google Patents]
    • Filing Date: Not explicitly stated in the summary.
    • Outcome/Current Status: Not Instituted - Procedural. [cite: US7398209B2 - Google Patents]

  6. Case: 3:24-cv-04388

    • Plaintiff(s): Not explicitly stated in the summary.
    • Defendant(s): Not explicitly stated in the summary.
    • Jurisdiction: California Northern District Court
    • Case Number: 3:24-cv-04388 [cite: US7398209B2 - Google Patents]
    • Filing Date: Not explicitly stated in the summary.
    • Outcome/Current Status: Litigation (status not detailed beyond this). [cite: US7398209B2 - Google Patents]

  7. Case: IPR2025-01351

    • Plaintiff(s): Petitioner (not named in summary).
    • Defendant(s): Patent Owner (Dialect LLC is the current assignee of US7398209). [cite: US7398209B2 - Google Patents]
    • Jurisdiction: Patent Trial and Appeal Board (PTAB)
    • Case Number: IPR2025-01351 [cite: US7398209B2 - Google Patents]
    • Filing Date: Not explicitly stated in the summary.
    • Outcome/Current Status: Settlement. [cite: US7398209B2 - Google Patents]

  8. Case: 2:23-cv-00061

    • Plaintiff(s): Not explicitly stated in the summary.
    • Defendant(s): Not explicitly stated in the summary.
    • Jurisdiction: Texas Eastern District Court
    • Case Number: 2:23-cv-00061 [cite: US7398209B2 - Google Patents]
    • Filing Date: Not explicitly stated in the summary.
    • Outcome/Current Status: Litigation (status not detailed beyond this). [cite: US7398209B2 - Google Patents]

  9. Case: IPR2024-00746

    • Plaintiff(s): Petitioner (not named in summary).
    • Defendant(s): Patent Owner (Dialect LLC is the current assignee of US7398209). [cite: US7398209B2 - Google Patents]
    • Jurisdiction: Patent Trial and Appeal Board (PTAB)
    • Case Number: IPR2024-00746 [cite: US7398209B2 - Google Patents]
    • Filing Date: Not explicitly stated in the summary.
    • Outcome/Current Status: Not Instituted - Merits. [cite: US7398209B2 - Google Patents]

For cases where specific plaintiff, defendant, or filing date information was not available directly from the Google Patents summary, further detailed searches on the provided Unified Patents links would be required. However, the available information does indicate the existence and general status of these various litigation matters.

Generated 5/22/2026, 6:48:45 AM