ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,033, issued on Nov. 25, was assigned to Unicharm Corp. (Ehime, Japan).
"System toilet for pets" was invented by Misato Nakatani (Kanonji, Japan), Yasuhiro Sasano (Kanonji, Japan) and Shinya Kaneko (Kanonji, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system toilet for a pet includes an excretion container, including a liquid-permeable bottom surface portion, that houses toilet litter, a tray, disposed below the excretion container, that houses an absorbent sheet that absorbs liquid having passed through the liquid-permeable bottom surface portion, a lower container that holds the tray, and an upper container disposed to cover an upper par...