ALEXANDRIA, Va., June 4 -- United States Patent no. 12,321,709, issued on June 3, was assigned to FMR LLC (Boston).

"Efficient caching and retrieval of responses in conversation service application communication sessions" was invented by Allen Detmer (Patriot, Ind.), Naveen Rajamoorthy (Mason, Ohio), Niranjan Vasan (Mason, Ohio) and Elio Dante Querze III (Arlington, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for efficient caching and retrieval of responses in conversation service applications includes a server that captures an utterance and converts the utterance into an utterance index key. The server searches a first response cache to determine whether the utterance index key ...