ALEXANDRIA, Va., Aug. 25 -- United States Patent no. D1,144,928, issued on Aug. 25, was assigned to Jiaxing Virpol Sanitary Ware Co. LTD. (Jiaxing, China).
"Hot tub" was invented by Baisi Qiu (Jiaxing, China) and Baien Qiu (Jiaxing, China).
The patent was filed on Aug. 5, 2025, under Application No. D/016,687.
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