ALEXANDRIA, Va., Aug. 18 -- United States Patent no. D1,143,320, issued on Aug. 18, was assigned to Riddell Inc. (Des Plaines, Ill.).
"Football helmet" was invented by Chris Withnall (Nepean, Canada), Michael Wonnacott (Ottawa), Vittorio Bologna (Medinah, Ill.), Thad M. Ide (Chicago), Ralph Infusino (Bloomingdale, Ill.) and Nelson Kraemer (Mount Prospect, Ill.).
The patent was filed on April 12, 2021, under Application No. D/793,023.
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