ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,198, issued on Oct. 7, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).
"Outdoor walking equipment" 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 configured to supply power to at least one of the walking motor or the driving motor, the first energy storage device detachably mounted to the frame and enabled to su...