ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,647, issued on April 7, was assigned to LG ENERGY SOLUTION LTD. (Seoul, South Korea).

"Gas analysis device" was invented by Dongguk Hwang (Daejeon, South Korea) and Nak Hee Choi (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas analysis device which is capable of analyzing a gas generated from a secondary battery at high resolution in real time. The gas analysis device comprises a diffusion chamber unit, a plurality of gas analysis units, an injector unit selectively injecting the gas generated from the secondary battery into one of the plurality of gas analysis units, and a control unit."

The patent was filed on Sept. 22, ...