ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,001, issued on April 22.
"Electric lifting and moving machine" was invented by Qian Li (Guangdong, China), Xiaotan Guo (Guangdong, China) and Yongchao Xue (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric lifting and moving machine, including a bearing assembly consisting of a seat board to bear a user; a supporting assembly having a chassis; an electric lifting assembly having a motor driving assembly and a lifting assembly in transmission connection with each other; the lifting assembly is arranged on the chassis; at least one connection rod connected to the lifting assembly and the bearing assembly so that the lifting as...