ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,878, issued on March 17, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Autonomous vehicle traffic management" was invented by Fang Lu (Billerica, Mass.), Jeremy R. Fox (Georgetown, Texas), Tushar Agrawal (West Fargo, N.D.) and Sarbajit K. Rakshit (Kolkata, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "In an approach to autonomous vehicle traffic management, one or more computer processors retrieve an identification associated with a first autonomous vehicle. One or more computer processors retrieve a distance rule corresponding to the first autonomous vehicle from a smart contract, wherein the distance rule is a rule...