ALEXANDRIA, Va., Sept. 3 -- United States Patent no. D1,091,440, issued on Sept. 2, was assigned to Black Donuts Oy (Pirkkala, Finland).
"Tire tread" was invented by Henri Sakari Kossi (Nokia, Finland) and Mikko Valtteri Sironen (Tampere, Finland).
The patent was filed on Dec. 4, 2023, under Application No. D/919,395.
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