ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,159, issued on April 21, was assigned to Volvo Truck Corp. (Gothenburg, Sweden).

"Gaseous fuel supply system for a clean combustion engine of a vehicle" was invented by Cristiano Zeni (Lyons, France), Rafig Babayev (Gothenburg, Sweden) and Tankai Zhang (Molndal, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gaseous fuel supply system for a clean combustion engine of a vehicle having a vehicle cooling system. The supply system comprises: a gaseous fuel tank storing pressurized gaseous fuel; at least a first supply line arranged to supply pressurized gaseous fuel from the gaseous fuel tank to the clean combustion engine; at least a first he...