ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,537, issued on May 20, was assigned to ALSTOM HOLDINGS (Saint-Ouen-sur-Seine, France) and SNCF Voyageurs (Saint-Denis, France).

"Railway carriage with vehicle monitoring system and associated monitoring method" was invented by Francois Bardin (Lesquin, France), Frederic Houze (Aubry-du-Hainaut, France) and Thibaut Leroy (Roubaix, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A railway carriage has a number of batteries, a charger associated with each of the batteries and at least one piece of equipment powered by the batteries, and a vehicle monitoring system. The monitoring system includes at least one sensor of a battery state parameter fo...