ALEXANDRIA, Va., March 24 -- United States Patent no. 12,585,992, issued on March 24, was assigned to ZixCorp Systems Inc. (Dallas).

"Machine learning with attribute feedback based on express indicators" was invented by David Gorham (McKinney, Texas), Michael Don Wigley (Dallas) and Mark Stephen DeMichele (Ann Arbor, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In some embodiments, a method comprises receiving an electronic message. In response to determining that the electronic message includes an express indication from a user that a classification applies or does not apply, the method comprises identifying message attributes of the electronic message that correspond to policy attributes of a machi...