ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,587, issued on Sept. 23, was assigned to C-TEC Constellium Technology Center (Voreppe, France).

"Wrought products made of 2XXX alloy having an optimized corrosion resistance, and method for obtaining same" was invented by Melanie Ollat (Ruy-Montceau, France) and Jean-Christophe Ehrstrom (Grenoble, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for thermomechanical treatment of wrought products made of a 2000 series aluminum alloy comprising, in % by weight, Cu 3.5-5.8; Mg 0.2-1.5; Mnless than equal to0.9; Feless than equal to0.15; Siless than equal to0.15; Zrless than equal to0.25; Agless than equal to0.8; Znless than equal to0.8; T...