ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,228, issued on May 6, was assigned to Motional AD LLC (Boston).

"Post drop-off passenger assistance" was invented by Bence Cserna (East Boston, Mass.), Alexander Brown (Dover, N.H.) and Kevin C. Gall (Dover, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are methods for post drop-off passenger assistance, which can include obtaining location data indicative of an environment where an autonomous vehicle is operating, determining a completion parameter indicative of a completion of a ride of the autonomous vehicle, determining, an assistance parameter indicative of an assistance of the autonomous vehicle to a passenger of the autonomous ...