ALEXANDRIA, Va., July 3 -- United States Patent no. 12,348,931, issued on July 1, was assigned to Expensify Inc. (San Francisco).

"Voice interactive system" was invented by David M. Barrett (San Francisco) and Robert Chen (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "An interactive system can utilize microtechnology (e.g., a micro-electromechanical system (MEMS)), such as miniaturized microphone (e.g., a bone-conducting microphone), audio output device, microprocessor, and signal conversion and propagation means to create a personal area network (PAN) for a user. The system can include a voice input device (e.g., worn on one or more teeth of the user) that outputs a near-field magnetic induct...