ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,608, issued on Aug. 19, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).
"Glass strengthening molten salt and glass strengthening method using the same" was invented by Hyunji Lee (Gimhae-si, South Korea), Yongkyu Kang (Hwaseong-si, South Korea) and Hoikwan Lee (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a glass strengthening method including preparing a glass and strengthening the glass by providing the glass with a molten salt, wherein the molten salt has a freezing point of about 220deg C. or more and less than 320deg C. In addition, the molten salt includes a first salt and a second salt th...