ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,504, issued on April 29, was assigned to Basell Poliolefine Italia S.r.l. (Milan).

"Catalyst components for the polymerization of olefins" was invented by Fabrizio Piemontesi (Ferrara, Italy), Alessandro Mignogna (Ferrara, Italy), Dario Liguori (Ferrara, Italy), Giampiero Morini (Ferrara, Italy), Tiziano Dall'Occo (Ferrara, Italy) and Gianni Vitale (Ferrara, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A solid catalyst component for the polymerization of olefins made from or containing a magnesium halide, a titanium compound having at least a Ti-halogen bond, a first electron donor compound selected from 1,3 diethers (DE), and a second electr...