ALEXANDRIA, Va., June 9 -- United States Patent no. 12,650,586, issued on June 9, was assigned to SHANGHAI RUIYU BIOTECH Co. LTD. (Shanghai).

"Microscopic devices and focusing methods thereof" was invented by Xiaojia Zhang (Shanghai) and Puwen Luo (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure disclose a microscopic device and a focusing method of the microscopic device, the microscopic device includes an object stage configured to carry a transparent carrier and drive the transparent carrier to translate along at least one direction, the transparent carrier includes at least two object positions; a microscopic objective located on a side of the object stage; a rangefinder lo...