ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,393,934, issued on Aug. 19, was assigned to VISA EUROPE Ltd. (London).
"Method of retaining transaction context" was invented by Brian Sullivan (London), David Wilson (London) and David Harbige (London).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods of transaction authentication are provided. In one such method, at least one first transaction has been conducted, the or each first transaction generating data including first data comprising authentication data and second data identifying the or each first transaction, wherein a given first transaction is between a merchant and a card holder. A cryptographically signed and/or encrypted token corresp...