ALEXANDRIA, Va., May 19 -- United States Patent no. 12,628,791, issued on May 19, was assigned to Xialong Technology (Shenzhen) Co. Ltd. (Shenzhen, China).

"Cat litter sieving device and cat litter box" was invented by Peixin Xiao (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cat litter sieving device and a cat litter box. The cat litter sieving device includes: a rotatable body, a sand guide plate, and a sieving net. The rotatable body defines a storage space and a drain outlet; the sand guide plate and the sieving net divide the storage space into a sand storage cavity and a sand sieving cavity. The sand guide plate is removably connected to the rotatable body; a side of the sand guide ...