ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,740,638, issued on Sept. 22, was assigned to TINECO INTELLIGENT TECHNOLOGY Co. LTD. (Suzhou City, China).
"Surface cleaning system, surface cleaning device and control method thereof" was invented by Xiaokang Dong (Suzhou City, China), Jian Sun (Suzhou City, China), Hao Lv (Suzhou City, China), Yang Ding (Suzhou City, China), Jing Wang (Suzhou City, China), Huiguo Wu (Suzhou City, China), Zhibo Gao (Suzhou City, China), Sihao Ban (Suzhou City, China), Jianfeng Wang (Suzhou City, China), Dehua Zhou (Suzhou City, China), Yonghai Liu (Suzhou City, China), Chunfeng Zhou (Suzhou City, China), Zhiyong Liang (Suzhou City, China) and Xisheng Xu (Suzhou City, China).
According to the abstrac...