ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,707, issued on Feb. 17, was assigned to Optum Inc. (Minnetonka, Minn.).

"Database management systems using hierarchically-enforced database association metadata" was invented by Paul W. Vaughan (Austin, Texas), Bernard M. Wong (Austin, Texas) and Munavvar Khan (Georgetown, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments of the present invention provide methods, apparatuses, systems, computing devices, computing entities, and/or the like for facilitating efficient and effective execution of database management operations. For example, various embodiments describe generating data associated with a database association manageme...