ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,548, issued on June 2, was assigned to Piaggio Fast Forward Inc. (Boston).

"Etiquette-based vehicle having pair mode and smart behavior mode and control systems therefore" was invented by Greg Lynn (Venice, Calif.), Jeffrey T. Schnapp (Cambridge, Mass.) and Mitchell Weiss (Carlisle, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A self-powered vehicle comprises a mechanical drive system, a set of sensors, and a controller coupled to the mechanical drive system to move the vehicle. The self-powered vehicle can operate in a plurality of modes, including a training mode and a smart behavior mode. In the training mode, the vehicle follows a traject...