ALEXANDRIA, Va., July 23 -- United States Patent no. D1,084,609, issued on July 22, was assigned to Proton Energy Technology (Dongguan) Co. Ltd. (Dongguan, China).
"Communication hat" was invented by Changchun He (Shenzhen, China).
The patent was filed on Feb. 24, 2025, under Application No. D/990,651.
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