ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,273, issued on Dec. 16, was assigned to VINCENT MEDICAL (DONG GUAN) MANUFACTURING Co. LTD (Guangdong, China) and VINCENT MEDICAL (DONG GUAN) TECHNOLOGY Co. LTD (Guangdong, China).

"NTC temperature measuring circuit, respirator and power-on self-test method for respirator" was invented by Jun Zhao (Dongguan, China), Jiebing Xu (Dongguan, China) and Haibin Yu (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An NTC temperature measuring circuit, a respirator and a power-on self-test method for the respirator are provided. The NTC temperature measuring circuit includes temperature measuring module, switch module, control module and detect...