ALEXANDRIA, Va., June 19 -- United States Patent no. 12,333,515, issued on June 17, was assigned to mx51 Pty Ltd (Melbourne, Australia).

"Electronic payment processing" was invented by Steven Hadley (Sydney) and Jason Chisholm (Syndey, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A payment terminal (2) is described. The payment terminal includes a payment application (6) for processing transaction requests and a web server, for example a websocket application (5) implementing a websocket server (4), for client-server communication over a communication channel with another transaction system device, for example a POS device. Transaction systems including the payment terminal (2) are also described...