ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,520,909, issued on Jan. 13, was assigned to ALPINESTARS RESEARCH S.P.A. (Maser, Italy).
"Footwear with retention system" was invented by Giovanni Mazzarolo (Coste di Maser, Italy), Andrea Marini (Volpago del Montello, Italy) and Silvano Spada (Canale Monterano, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "Footwear (1) with retention system (2) comprising an upper (4) delimiting an inner space; the retention system (2) is positioned at least partially in the inner space and comprises at least one constraint element (10A, 10B, 10C) designed to be positioned at the top instep area or at the side/heel area of the foot of the user, the at least one c...