ALEXANDRIA, Va., Feb. 11 -- United States Patent no. D1,112,987, issued on Feb. 10, was assigned to M Square Ltd (Shenzhen, China).
"Smart cat litter box" was invented by Lixin Zhu (Shenzhen, China) and Xiujia Zhu (Shenzhen, China).
The patent was filed on Dec. 1, 2023, under Application No. D/919,225.
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