ALEXANDRIA, Va., April 15 -- United States Patent no. RE50,866, issued on April 14.

"Fraud prevention trading and payment system for business and consumer transactions" was invented by Gabriel Johann Petrovici (Cologne, Germany) and Michelle Anna Sindi (Lubeck, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A code system for preventing fraud in trading and at the same time a safe payment method for business and consumer. The code system of the present invention ensures security and control for the contracting parties regarding the previously defined attributes of the goods and the payment including all decisional steps of the transactions as well as of the reverse transactions in case of complaint. T...