US Patent Issued to DONGGUAN CACTUS SCIENCE & TECHNOLOGY on June 16 for "Self-cleaning cat litter box" (Chinese Inventor)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,653,141, issued on June 16, was assigned to DONGGUAN CACTUS SCIENCE & TECHNOLOGY Co. Ltd. (Dongguan, China).

"Self-cleaning cat litter box" was invented by Zhihui Song (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A self-cleaning cat litter box includes a base, a drum, at least one driven toothed structure, at least one driving toothed structure, and a driving device. The at least one driven toothed structure is arranged on an outer peripheral wall of the drum, extending along a circumferential direction of the drum, and approximately symmetrically arranged with respect to the central plane. The at least one driving toothed structure i...