ALEXANDRIA, Va., July 7 -- United States Patent no. 12,673,521, issued on July 7, was assigned to PIRELLI TYRE S.P.A. (Milan).
"Car tyre" was invented by Gianfranco Colombo (Milan), Roberto Bolzoni (Milan), Stefano Bizzi (Milan) and Daniele Lorenzetti (Milan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tyre having a tread is described. The tyre has a central portion located across an equatorial plane, a first shoulder portion located towards an outer side of the tyre and a second shoulder portion located towards an inner side of the tyre. The central portion is separated from the first shoulder portion by two first circumferential grooves. The first shoulder portion and the second shoulder portion have a...