ALEXANDRIA, Va., Oct. 21 -- United States Patent no. D1,154,904, issued on Oct. 20, was assigned to Shenzhen Jinfengdao Technology Co. Ltd. (Shenzhen, China).
"Pair of earplugs" was invented by Yang Liu (Shenzhen, China).
The patent was filed on June 4, 2025, under Application No. D/006,684.
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