ALEXANDRIA, Va., April 7 -- United States Patent no. D1,121,387, issued on April 7, was assigned to Ningbo Wusheng Intelligent Technology Co. Ltd. (Ningbo, China).
"Portable water warmer" was invented by Jun Xu (Ningbo, China), Yanjun Yao (Ningbo, China), Qiaoyan Qian (Ningbo, China), Qianqian Xi (Ningbo, China) and Weijuan Ge (Ningbo, China).
The patent was filed on March 10, 2025, under Application No. D/992,564.
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