ALEXANDRIA, Va., April 2 -- United States Patent no. 12,265,551, issued on April 1, was assigned to MasterCard International Inc. (Purchase, N.Y.).

"Messaging relationship unique identifier systems and methods" was invented by Rodney Victor Barlow Pye (Riverwoods, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computer system that includes a database for storing a plurality of records, and an electronic message processing server. Each of the records corresponds to a respective message received by the server. The processor is programmed to store a first record of a first message in the database, the first record including a first message relationship unique identifier (MUI) as a tag. The first MUI corr...