The US Patent and Trademark Office (USPTO) recently issued what it labeled as Inventorship Guidance for AI-Assisted Inventions [Docket No. PTO-P-2023-0043].¹ Despite its name, the document provides little in the way of certainty that one could not garner from reviewing recent precedent addressing the issue of artificial intelligence (AI) inventions. To begin with, the USPTO warns that its “guidance does not constitute substantive rulemaking and does not have the force and effect of law.”² Rather, “[t]he guidance sets out agency policy with respect to the USPTO’s interpretation of the inventorship requirements of the Patent Act in view of” controlling jurisprudence, but “[r]ejections will continue to be based on the substantive law, and it is those rejections that are appealable to the PTAB and the courts.”³ Adding to the confusion attendant to the actual purpose thereof, the guidelines admonish that, “[t]o the extent that earlier guidance from the USPTO, including certain sections of the Manual of Patent Examining Procedure. . . is inconsistent with the guidance set forth” in such guidelines, “USPTO personnel are to follow these guidelines,” and “[t]he MPEP will be updated in due course.”⁴