ALEXANDRIA, Va., July 28 -- United States Patent no. D1,137,711, issued on July 28, was assigned to NINGBO HAODA HAISHENG TECHNOLOGY Co. LTD. (Ningbo City, China) and FUJIAN YITAIKANG ELECTRONICS Co. LTD (Fuzhou City, China).

"Foot thermal application assembly" was invented by Chaoling Wang (Ningbo City, China) and Haitao Huang (Ningbo City, China).

The patent was filed on April 23, 2025, under Application No. D/000,575.

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