ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,543,649, issued on Feb. 10, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).
"Riding lawn mower" was invented by Dezhong Yang (Nanjing, China), Yangzi Liu (Nanjing, China), Li Li (Nanjing, China) and Ju Li (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A riding lawn mower, including: a frame; a seat; a walking assembly and a walking motor; a cutting assembly and a driving motor configured to drive the cutting assembly; a first energy storage device and a second energy storage device configured to supply power to at least one of the walking motor or the driving motor; a driving circuit to transfer power from at least on...