ALEXANDRIA, Va., April 21 -- United States Patent no. 12,608,373, issued on April 21, was assigned to Oracle International Corp. (Redwood Shores, Calif.).

"Detecting out-of-domain, out-of-scope, and confusion-span (OOCS) input for a natural language to logical form model" was invented by Gioacchino Tangari (Sydney), Cong Duy Vu Hoang (Melbourne, Australia), Poorya Zaremoodi (Melbourne, Australia), Philip Arthur (Sydney), Nitika Mathur (Melbourne, Australia), Mark Edward Johnson (Sydney) and Thanh Long Duong (Melbourne, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods identify whether an input utterance is suitable for providing to a machine learning model configured to generate a ...