ALEXANDRIA, Va., July 21 -- United States Patent no. D1,135,381, issued on July 21, was assigned to Shenzhen Liangyuan Technology Co. Ltd. (Shenzhen, China).

"Treasure chest" was invented by Sipan Liu (Shenzhen, China).

The patent was filed on Nov. 2, 2023, under Application No. D/915,655.

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