ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,809, issued on July 15, was assigned to HUBEI ZHONG'AO NANOTECH Co. LTD (Guangshui, China).

"Device and method for producing nano-sized zinc molybdate and application of same" was invented by Fangwu Chen (Guangshui, China), Xu Zhao (Guangshui, China), Luocheng Chen (Guangshui, China), Zheng Sun (Guangshui, China), Zhongkai Wu (Guangshui, China) and Zhen Chen (Guangshui, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A production device, method and application of nano-sized zinc molybdate. The device includes a double-cone mixer; an elevator is obliquely provided at a bottom of a discharge port of the double-cone mixer; a rear end of the elevat...