ALEXANDRIA, Va., Sept. 24 -- United States Patent no. D1,148,481, issued on Sept. 22, was assigned to Shenzhen Baodexian Technology Co. Ltd. (Shenzhen, China).

"Lunch box" was invented by Yu Sun (Shenzhen, China).

The patent was filed on May 29, 2025, under Application No. D/005,922.

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