ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,548,427, issued on Feb. 10, was assigned to MJ Biochem Co. Ltd. (Seoul, South Korea).
"Wireless earphone case with anti-loss function for smartphone" was invented by Joonwon Park (Seoul, South Korea) and Sungmin Park (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Wireless earphone case having a short-range wireless communication function comprising Bluetooth, and anti-loss function for smartphone is disclosed, wherein the wireless earphone case is paired with a smartphone and exchanges signals with each other, and when the distance between the two is greater than a predetermined interval, the smartphone is notified of the risk of los...