ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,711,500, issued on Aug. 18, was assigned to PLATINUM DIGITAL TECHNOLOGIES INC. (Los Angeles).

"Closed loop blockchain gateway system" was invented by Joseph T. Goulet (Los Angeles).

According to the abstract* released by the U.S. Patent & Trademark Office: "Exemplary embodiments described herein include a closed loop gateway. The closed-loop gateway comprises a block chain system for tracking exchanges between users of the closed-loop gateway. The closed-loop gateway permits the exchanges to be tracked from an original source through subsequent users to permit the original source to impose conditions, restrictions, and rules on the subsequent exchanges."

The patent was filed on June...