ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,740, issued on April 22, was assigned to Motional AD LLC (Boston).

"Methods for passenger authentication and door operation for autonomous vehicles" was invented by Junsung Kim (Boston), Yunpeng Xu (Boston), Vasudeva Pai Melgangolli (Boston), Brett Sandler (Boston) and Scott Sweeny (Boston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are computer systems and techniques for authenticating a passenger of an autonomous vehicle and operating doors of the autonomous vehicle. For passenger authentication, the computer system is configured to receive a ride request, generate a passcode, transmit the passcode to a user account and the autonomous ...