ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,446,540, issued on Oct. 21, was assigned to Shanghai Xinqi Electronic Technology Co. Ltd. (Shanghai).
"Litter bag sealing device and cat litter box" was invented by Guodong Yao (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A litter bag sealing device includes: a device body, configured to mount a litter bag; a rotation ring, rotatably mounted on the device body, where rotation ring defines a dropping opening configured to allow the litter bag to pass through; at least two rotation sheets, rotatably connected to the device body and slidably connected to the rotation ring; a drive mechanism, driveably connected to the rotation ring to drive the...