ALEXANDRIA, Va., Sept. 24 -- United States Patent no. D1,148,444, issued on Sept. 22, was assigned to HUI ZHOU TIAN CHANG INDUSTRIAL Co. LTD. (Huizhou City, China).
"Portable coffee machine" was invented by Lingfung Sin (Huizhou City, China), Yanchang Ma (Huizhou City, China), Bailin Wu (Huizhou City, China) and Anan Long (Huizhou City, China).
The patent was filed on April 1, 2025, under Application No. D/996,423.
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