ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,501,978, issued on Dec. 23.
"Wallet with anti-lost card" was invented by Yusheng Liang (Gaozhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wallet is provided with an anti-lost card, so as to facilitate the user to track the wallet by the anti-lost card, the anti-lost card can be detachably or permanently placed in a wallet body of the wallet. A positioning module of the anti-lost card can take advantage of existing network of devices, which work as crowdsourced beacons to ping each other in order to determine the location of the missing wallet, so that compatible electronic devices can use an app to identify the approximate location of the ...