ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,086, issued on March 24, was assigned to Ningbo Singfun Electric Appliance Co. Ltd. (Ningbo, China).
"Linkage-type litter box" was invented by Yuchu Yao (Ningbo, China), Jialei Mao (Ningbo, China) and Zhimin Lin (Ningbo, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A linkage-type litter box comprises a box body, a filter shovel, a driving mechanism and a linkage member. A cavity is provided inside the box body, and the filter shovel is arranged inside the cavity. The driving mechanism is arranged on the box body and connected to the linkage member. The linkage member is connected to the filter shovel to drive the filter shovel to rotate and...