Patent 8724622

Litigation summary

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

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No PTAB proceedings on file. This patent has not been challenged through Inter Partes Review, Post-Grant Review, or Covered Business Method review at the USPTO. The absence is itself a signal — well-asserted patents eventually attract IPRs.

Cases on file (0)

Specific litigation cases in our database that name US patent 8724622. The free-form analysis below may also discuss cases beyond this list.

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Litigation summary

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

✓ Generated

As a patent analyst, I've searched for litigation involving US patent 8724622. Based on the provided authoritative patent text and a search on Unified Patents, here's a summary of known litigation and related PTAB (Patent Trial and Appeal Board) cases:

Known Litigation and PTAB Cases involving US Patent 8724622:

The patent US8724622B2 has been involved in significant litigation, including numerous district court cases and PTAB proceedings.

District Court Litigation (Texas Eastern District Court):

  • Case Number: 2:16-cv-00892 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]
    • Status: Critical (based on Google Patents listing) [cite: US8724622B2]

  • Case Number: 2:16-cv-00638 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00639 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00640 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00641 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00642 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00643 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00644 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00645 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00694 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00696 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00722 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00725 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00728 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00731 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00732 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00733 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00777 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00779 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00893 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00990 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00991 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00992 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00994 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:16-cv-00989 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:17-cv-00214 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:17-cv-00224 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:17-cv-00231 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:17-cv-00347 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:17-cv-00349 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

  • Case Number: 2:18-cv-00290 [cite: US8724622B2]

    • Jurisdiction: Texas Eastern District Court [cite: US8724622B2]

District Court Litigation (California Central District Court):

  • Case Number: 8:19-cv-00780 [cite: US8724622B2]
    • Jurisdiction: California Central District Court [cite: US8724622B2]

Court of Appeals for the Federal Circuit (CAFC) Litigation:

  • Case Number: 19-2159 [cite: US8724622B2]

    • Jurisdiction: Court of Appeals for the Federal Circuit [cite: US8724622B2]

  • Case Number: 19-2162 [cite: US8724622B2]

    • Jurisdiction: Court of Appeals for the Federal Circuit [cite: US8724622B2]

  • Case Number: 19-2165 [cite: US8724622B2]

    • Jurisdiction: Court of Appeals for the Federal Circuit [cite: US8724622B2]

  • Case Number: 23-1023 [cite: US8724622B2]

    • Jurisdiction: Court of Appeals for the Federal Circuit [cite: US8724622B2]

PTAB Cases:

  • Case Number: IPR2017-02080 [cite: US8724622B2]

    • Status: Not Instituted - Merits [cite: US8724622B2]

  • Case Number: IPR2018-00580 [cite: US8724622B2]

    • Status: Final Written Decision [cite: US8724622B2]

  • Case Number: IPR2017-01668 [cite: US8724622B2]

    • Status: Final Written Decision [cite: US8724622B2]

  • Case Number: IPR2017-01798 [cite: US8724622B2]

    • Status: Settlement [cite: US8724622B2]

  • Case Number: IPR2017-01797 [cite: US8724622B2]

    • Status: Settlement [cite: US8724622B2]

  • Case Number: IPR2019-01558 [cite: US8724622B2]

    • Status: Not Instituted - Merits [cite: US8724622B2]

  • Case Number: IPR2019-01559 [cite: US8724622B2]

    • Status: Not Instituted - Merits [cite: US8724622B2]

  • Case Number: IPR2018-00579 [cite: US8724622B2]

    • Status: Final Written Decision [cite: US8724622B2]

  • Case Number: IPR2017-02090 [cite: US8724622B2]

    • Status: Final Written Decision [cite: US8724622B2]

  • Case Number: IPR2017-00223 [cite: US8724622B2]

    • Status: Not Instituted - Merits [cite: US8724622B2]

  • Case Number: IPR2017-00224 [cite: US8724622B2]

    • Status: Not Instituted - Merits [cite: US8724622B2]

  • Case Number: IPR2017-01804 [cite: US8724622B2]

    • Status: Not Instituted - Procedural [cite: US8724622B2]

  • Case Number: IPR2017-01805 [cite: US8724622B2]

    • Status: Not Instituted - Procedural [cite: US8724622B2]

  • Case Number: IPR2017-02081 [cite: US8724622B2]

    • Status: Not Instituted - Procedural [cite: US8724622B2]

  • Case Number: IPR2017-01667 [cite: US8724622B2]

    • Status: Final Written Decision [cite: US8724622B2]

Additional Litigation Information:

  • The patent family has had "First worldwide family litigation filed" according to Google Patents. [cite: US8724622B2]
  • The current assignee is Uniloc 2017 LLC. [cite: US8724622B2] The original assignee was Empire IP LLC. [cite: US8724622B2]

Please note that for many of the listed cases, specific plaintiff(s), defendant(s), and filing dates are not directly provided in the Google Patents listing, which primarily focuses on case numbers, jurisdictions, and outcomes/statuses. A deeper dive into PACER or specific court dockets would be required to retrieve those granular details for each individual case.## Litigation Involving US Patent 8724622

US Patent 8724622, titled "System and method for instant VoIP messaging," has been involved in extensive litigation, including numerous district court cases across various jurisdictions and multiple proceedings before the Patent Trial and Appeal Board (PTAB) of the USPTO.

The current assignee of the patent is Uniloc 2017 LLC, while the original assignee was Empire IP LLC. [cite: US8724622B2]

Here's a breakdown of known litigation and PTAB cases associated with US8724622:

District Court Litigation

Texas Eastern District Court:
Numerous cases have been filed in the Texas Eastern District Court, indicating a concentrated litigation effort. Specific details regarding plaintiffs and defendants for each case would require individual docket searches, but the patent has been asserted in at least the following actions:

  • Case Number: 2:16-cv-00892. [cite: US8724622B2] Status: Listed as "Critical." [cite: US8724622B2]
  • Case Number: 2:16-cv-00638 [cite: US8724622B2]
  • Case Number: 2:16-cv-00639 [cite: US8724622B2]
  • Case Number: 2:16-cv-00640 [cite: US8724622B2]
  • Case Number: 2:16-cv-00641 [cite: US8724622B2]
  • Case Number: 2:16-cv-00642 [cite: US8724622B2]
  • Case Number: 2:16-cv-00643 [cite: US8724622B2]
  • Case Number: 2:16-cv-00644 [cite: US8724622B2]
  • Case Number: 2:16-cv-00645 [cite: US8724622B2]
  • Case Number: 2:16-cv-00694 [cite: US8724622B2]
  • Case Number: 2:16-cv-00696 [cite: US8724622B2]
  • Case Number: 2:16-cv-00722 [cite: US8724622B2]
  • Case Number: 2:16-cv-00725 [cite: US8724622B2]
  • Case Number: 2:16-cv-00728 [cite: US8724622B2]
  • Case Number: 2:16-cv-00731 [cite: US8724622B2]
  • Case Number: 2:16-cv-00732 [cite: US8724622B2]
  • Case Number: 2:16-cv-00733 [cite: US8724622B2]
  • Case Number: 2:16-cv-00777 [cite: US8724622B2]
  • Case Number: 2:16-cv-00779 [cite: US8724622B2]
  • Case Number: 2:16-cv-00893 [cite: US8724622B2]
  • Case Number: 2:16-cv-00990 [cite: US8724622B2]
  • Case Number: 2:16-cv-00991 [cite: US8724622B2]
  • Case Number: 2:16-cv-00992 [cite: US8724622B2]
  • Case Number: 2:16-cv-00994 [cite: US8724622B2]
  • Case Number: 2:16-cv-00989 [cite: US8724622B2]
  • Case Number: 2:17-cv-00214 [cite: US8724622B2]
  • Case Number: 2:17-cv-00224 [cite: US8724622B2]
  • Case Number: 2:17-cv-00231 [cite: US8724622B2]
  • Case Number: 2:17-cv-00347 [cite: US8724622B2]
  • Case Number: 2:17-cv-00349 [cite: US8724622B2]
  • Case Number: 2:18-cv-00290 [cite: US8724622B2]

California Central District Court:

  • Case Number: 8:19-cv-00780. [cite: US8724622B2]

Court of Appeals for the Federal Circuit (CAFC) Litigation

  • Case Number: 19-2159 [cite: US8724622B2]
  • Case Number: 19-2162 [cite: US8724622B2]
  • Case Number: 19-2165 [cite: US8724622B2]
  • Case Number: 23-1023 [cite: US8724622B2]

Patent Trial and Appeal Board (PTAB) Cases

The patent has also been challenged in several Inter Partes Review (IPR) proceedings:

  • Case Number: IPR2017-02080. [cite: US8724622B2] Outcome: Not Instituted - Merits. [cite: US8724622B2]
  • Case Number: IPR2018-00580. [cite: US8724622B2] Outcome: Final Written Decision. [cite: US8724622B2]
  • Case Number: IPR2017-01668. [cite: US8724622B2] Outcome: Final Written Decision. [cite: US8724622B2]
  • Case Number: IPR2017-01798. [cite: US8724622B2] Outcome: Settlement. [cite: US8724622B2]
  • Case Number: IPR2017-01797. [cite: US8724622B2] Outcome: Settlement. [cite: US8724622B2]
  • Case Number: IPR2019-01558. [cite: US8724622B2] Outcome: Not Instituted - Merits. [cite: US8724622B2]
  • Case Number: IPR2019-01559. [cite: US8724622B2] Outcome: Not Instituted - Merits. [cite: US8724622B2]
  • Case Number: IPR2018-00579. [cite: US8724622B2] Outcome: Final Written Decision. [cite: US8724622B2]
  • Case Number: IPR2017-02090. [cite: US8724622B2] Outcome: Final Written Decision. [cite: US8724622B2]
  • Case Number: IPR2017-00223. [cite: US8724622B2] Outcome: Not Instituted - Merits. [cite: US8724622B2]
  • Case Number: IPR2017-00224. [cite: US8724622B2] Outcome: Not Instituted - Merits. [cite: US8724622B2]
  • Case Number: IPR2017-01804. [cite: US8724622B2] Outcome: Not Instituted - Procedural. [cite: US8724622B2]
  • Case Number: IPR2017-01805. [cite: US8724622B2] Outcome: Not Instituted - Procedural. [cite: US8724622B2]
  • Case Number: IPR2017-02081. [cite: US8724622B2] Outcome: Not Instituted - Procedural. [cite: US8724622B2]
  • Case Number: IPR2017-01667. [cite: US8724622B2] Outcome: Final Written Decision. [cite: US8724622B2]

For more specific details on plaintiffs, defendants, and filing dates for each individual district court and CAFC case, further investigation into public court records (e.g., through PACER) would be necessary.

Generated 5/29/2026, 8:56:22 PM