Patent 8239358
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 (1)
Group view →Specific litigation cases in our database that name US patent 8239358. The free-form analysis below may also discuss cases beyond this list.
- Semantic Engines LLC v. Microsoft Corpfiled Apr 23, 20262:26-cv-00339Texas Eastern District CourtOpen
Defendants: Microsoft Corp
Other patents asserted: 9218414, 10783192
The lawsuit targets Microsoft’s AI services, Bing Chat and Microsoft Copilot, as well as the underlying Prometheus technology.
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.