ALEXANDRIA, Va., May 19 -- United States Patent no. 12,628,733, issued on May 19, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).

"Riding mowing device" was invented by Cheng Dai (Nanjing, China), Zhusheng Nie (Nanjing, China) and Toshinari Yamaoka (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A riding mowing device includes a seat, a frame, a cutting assembly, a walking assembly, a power supply assembly, and a steering wheel assembly. The cutting assembly includes a cutting deck and a mowing element. The cutting assembly is mounted to the frame. The walking assembly is used for driving the riding mowing device to walk. The power supply assembly is used for powering at le...