ALEXANDRIA, Va., April 2 -- United States Patent no. 12,262,741, issued on April 1, was assigned to KT&G Corp. (Daejeon, South Korea).

"Aerosol generating device" was invented by Min Kyu Kim (Seoul, South Korea), Won Kyeong Lee (Gyeonggi-do, South Korea), Jong Sub Lee (Gyeonggi-do, South Korea) and Byung Sung Cho (Gyeonggi-do, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aerosol generating device includes a first cartridge including a first material and a delivery hole, a second cartridge including chambers for accommodating a second material through which an aerosol passes, a position of the second cartridge with respect to the first cartridge being changeable, a remaining amount sensor con...