ALEXANDRIA, Va., March 5 -- United States Patent no. D1,065,559, issued on March 4, was assigned to Shenzhen Yichuang Technology Semiconductor Co. Ltd. (Guangdong, China).
"Hand warmer" was invented by Xiaofei Xia (Guangdong, China).
The patent was filed on Sept. 22, 2023, under Application No. D/903,384.
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