ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,901, issued on March 3, was assigned to The Boeing Co. (Arlington, Va.).

"Model-based systems engineering tool utilizing impact analysis" was invented by Andrew J. Gabel (Oklahoma City), Patrick D. Dees (Huntsville, Ala.), Sophan Im (El Segundo, Calif.), Roger K. Bolton (Hunstville, Ala.) and Gregory S. Allen (Louisville, Ky.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A model-based systems engineering tool that determines an impact analysis of a change upon a system model includes a relations database storing a framework describing pre-established relationships between a plurality of elements that are part of the system model. The pre-establishe...