ALEXANDRIA, Va., July 21 -- United States Patent no. D1,136,416, issued on July 21, was assigned to UBTECH ROBOTICS CORP LTD (Shenzhen, China).
"Cat litter box" was invented by Qiujie Lin (Shenzhen, China).
The patent was filed on July 9, 2025, under Application No. D/012,174.
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