ALEXANDRIA, Va., May 5 -- United States Patent no. 12,616,163, issued on May 5, was assigned to PETPIVOT INC (Portland, Ore.).
"Pet toilet" was invented by Xiaoxiang Tang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a pet toilet, wherein: when the roller rotates from the original position toward the defecation position, the pet sand can enter the third accommodation space through the sieve component, the excrement is limited out of the third accommodation space; the sealing door opens the second opening, the first opening rotates along with the roller to be aligned with the second opening, such that the excrement can be discharged by its own gravity into th...