ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,131, issued on Aug. 19, was assigned to Daimler Truck AG (Leinfelden-Echterdingen, Germany).
"Electric truck" was invented by Naotatsu Kumagai (Kawasaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric truck with a plurality of battery packs adjacently arranged along a vehicle length direction, the battery packs each installed under side rails constituting a ladder frame and the battery packs each having a pair of first side faces facing to the vehicle length direction and a pair of second side faces facing to a vehicle width direction. The electric truck has battery-side brackets disposed on both sides in the vehicle length directi...