ALEXANDRIA, Va., Aug. 12 -- United States Patent no. D1,140,894, issued on Aug. 11, was assigned to HANGZHOU LIFESMART TECHNOLOGY Co. LTD. (Hangzhou, China).
"Wearable multi channel speaker" was invented by Jianhua Wang (Hangzhou, China) and Dongyue Wu (Hangzhou, China).
The patent was filed on Dec. 28, 2023, under Application No. D/923,372.
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