As readers may recall, in February 2024, the USPTO issued guidance on inventorship in AI-assisted inventions, which we wrote about here. On November 26, 2025, the USPTO rescinded that guidance and replaced it with new guidance.
By way of background, the February 2024 Guidance analyzed the naming of inventors for AI-assisted inventions using the Pannu factors, which state that an inventor must (1) contribute in some significant manner to the conception or reduction to practice of an invention, (2) make a contribution to the claimed invention that is not insignificant in quality when measured against the full invention, and (3) do more than merely explain well-known concepts and/or the current state of the art. In the February 2024 Guidance, the USPTO noted that in the context of AI-assisted inventions, the Pannu factors were informed by the following considerations: