ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,860, issued on March 25, was assigned to Bridgestone Europe NV/SA (Zaventem, Belgium).
"Tread for a winter pneumatic tire and a winter pneumatic tire" was invented by Alessandro Amenta (Rome), Emanuela Paciulli (Rome), Luca Manfre' (Rome) and Pierfrancesco Triboulet (Rome).
According to the abstract* released by the U.S. Patent & Trademark Office: "Tread (1) for a pneumatic tyre, comprising a sequence of tread elements (5) forming an overall "V" shape with two lateral wings (7, 7'), each of said wings being formed from three tread blocks (11, 21, 31) separated therebetween by first and second grooves (15, 16); said three tread blocks (11,21,31) comprise at least one shoulder blo...