ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,217, issued on July 21, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Control of reactive power export and import" was invented by Ramachandra Rao Kolluri (Cranbourne East, Australia), Johannes Adrianus Wilhelmus Roling (Gouda, Netherlands) and Glen Garner (Manly West, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method, computer program product, and computer system to control an exporting and importing of reactive power by nodes of a network. One node of the network (capable of exporting Q units of reactive power to the network) and N nodes of the network (each capable of importing reactive power from the netw...