ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,987, issued on June 3, was assigned to CONSTELLIUM NEUF-BRISACH (Biesheim, France).
"Battery box bottom part for electric vehicles" was invented by Peter Jessner (Bourgoin-Jallieu, France), Jocelyne List (Saint Egreve, France) and Estelle Muller (Grenoble, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is directed to a bottom part of a battery box for electric or hybrid motor vehicles made from an aluminium alloy sheet having a thickness between 2 and 6 mm, wherein said aluminum alloy comprises 2.5 to 4.0 wt. % of Mg, 0.1 to 0.8 wt. % of Mn, 0.4 wt. % or less of Si, 0.5 wt. % or less of Fe, 0.5 wt. % or less of Cu, 0.1 wt...