US Patent Issued to CONSTELLIUM ISSOIRE, CONSTELLIUM VALAIS SA (AG-LTD) on March 18 for "Thick products made of 7XXX alloy and manufacturing process" (French, Swiss Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,771, issued on March 18, was assigned to CONSTELLIUM ISSOIRE (Issoire, France) and CONSTELLIUM VALAIS SA (AG-LTD) (Sierre, Switzerland).

"Thick products made of 7XXX alloy and manufacturing process" was invented by Cedric Gasqueres (Aix en Provence, France) and Jean-Etienne Fournier (Basse-Nendaz, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an aluminum alloy for the manufacture of thick blocks comprising (as a percentage by weight), Zn: 5.3-5.9%, Mg: 0.8-1.8%, Cu: greater than0.2%, Zr: 0.05 to 0.12%, Tigreater than0.15%, Mngreater than0.1%, Crgreater than0.1%, Sigreater than0.15%, Fegreater than0.20%,...