ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,009, issued on June 10, was assigned to Shangshui Smartech Ltd. (Shenzhen, China).
"Impeller assembly and mixing apparatus" was invented by Qiao Shi (Guangdong, China), Yongcheng Xu (Guangdong, China), Shujuan Bai (Guangdong, China) and Xudong Jin (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application discloses an impeller assembly and a mixing apparatus, and relates to the technical field of solid and liquid mixing devices. The impeller assembly includes an impeller structure and a housing structure. The impeller structure includes a body, and a surface of the body is provided with a plurality of backward-skewed bl...