ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,973, issued on Sept. 1, was assigned to AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co. LTD. (Shenzhen, China).

"Gas sensor" was invented by Jinyu Zhang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a shell with a receiving cavity, an infrared transmitter and an acoustic sensor accommodated in the receiving cavity, and a flexible film connected with the side wall, the shell includes a cover, a substrate, and a side wall, the flexible film divides the receiving cavity into a first cavity and a second cavity, the infrared transmitter is located in the first cavity, the acoustic sensor is located in the second...