Patent 8031223
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 8031223. 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.
I have reviewed the Google Patents page for US patent 8031223, which indicates a history of litigation. However, to provide comprehensive details for each case, such as plaintiff(s), defendant(s), filing date, and outcome or current status, direct access to the linked court documents or specific litigation databases is required, which I cannot perform. The Google Patents page for US8031223B2 provides the following summaries of litigation cases:
Known Litigation Involving US Patent 8031223:
Jurisdiction: Texas Western District Court
- Case Number: 6:21-cv-00615
- Filing Date: Not explicitly provided on the Google Patents summary.
- Plaintiff(s): Not explicitly provided on the Google Patents summary.
- Defendant(s): Not explicitly provided on the Google Patents summary.
- Outcome/Current Status: Not explicitly provided on the Google Patents summary.
Jurisdiction: Texas Western District Court
- Case Number: 1:20-cv-00352
- Filing Date: Not explicitly provided on the Google Patents summary.
- Plaintiff(s): Not explicitly provided on the Google Patents summary.
- Defendant(s): Not explicitly provided on the Google Patents summary.
- Outcome/Current Status: Not explicitly provided on the Google Patents summary.
Jurisdiction: Texas Western District Court
- Case Number: 1:19-cv-01210
- Filing Date: Not explicitly provided on the Google Patents summary.
- Plaintiff(s): Not explicitly provided on the Google Patents summary.
- Defendant(s): Not explicitly provided on the Google Patents summary.
- Outcome/Current Status: Not explicitly provided on the Google Patents summary.
Jurisdiction: Illinois Northern District Court
- Case Number: 1:19-cv-08424
- Filing Date: Not explicitly provided on the Google Patents summary.
- Plaintiff(s): Not explicitly provided on the Google Patents summary.
- Defendant(s): Not explicitly provided on the Google Patents summary.
- Outcome/Current Status: Not explicitly provided on the Google Patents summary.
Jurisdiction: Delaware District Court
- Case Number: 1:19-cv-01648
- Filing Date: Not explicitly provided on the Google Patents summary.
- Plaintiff(s): Not explicitly provided on the Google Patents summary.
- Defendant(s): Not explicitly provided on the Google Patents summary.
- Outcome/Current Status: Not explicitly provided on the Google Patents summary.
Jurisdiction: Delaware District Court
- Case Number: 1:19-cv-00997
- Filing Date: Not explicitly provided on the Google Patents summary.
- Plaintiff(s): Not explicitly provided on the Google Patents summary.
- Defendant(s): Not explicitly provided on the Google Patents summary.
- Outcome/Current Status: Not explicitly provided on the Google Patents summary.
The Google Patents page also mentions "First worldwide family litigation filed" with a link to darts-ip.com, but without specific case details.
While the Unified Patents portal is an excellent resource for litigation data, direct programmatic access to its case search functionality using a specific patent number (e.g., using the "Patents in Case" filter) is beyond my capabilities. My search for "US8031223 litigation Unified Patents" returned general information about Unified Patents and its reports but did not provide the specific case details needed for this patent.
Therefore, the comprehensive details for each case (plaintiff, defendant, filing date, and outcome/current status) cannot be fully provided without manual interaction with the linked resources or a dedicated, interactive search on platforms like Unified Patents or PACER.
Generated 5/29/2026, 8:54:21 PM