US Patent Issued to NOKIAN RENKAAT on July 21 for "Studded tyre having grooves" (Finnish Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,236, issued on July 21, was assigned to NOKIAN RENKAAT OYJ (Nokia, Finland).

"Studded tyre having grooves" was invented by Mikko Liukkula (Nokia, Finland), Aappo Laitila (Nokia, Finland) and Lauri Heikkinen (Nokia, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tyre includes a tread having tread blocks such that grooves are arranged between the tread blocks and studs installed into at least some of the tread blocks. A central region of the tread is arranged between a first shoulder region of the tread and a second shoulder region of the tread. A land ratio of the central region of the tread of the tyre is 1 to 30 percentage points greater ...