ALEXANDRIA, Va., July 7 -- United States Patent no. 12,673,520, issued on July 7, was assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN (Clermont-Ferrand, France).

"Heavy-duty vehicle tire tread with improved robustness" was invented by Clement Orambot (Clermont-Ferrand Cedex, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heavy-duty vehicle tire tread to improve resistance to chunking of the oblique sipes opening into the external cavities thereof and having at least one substantially longitudinal cut (3) with at least one external cavity (6) open onto the tread surface (2) along an open section (7) having a closed contour (8). Each cavity (6) is connected to two substantially longitudinal...