ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,838, issued on Sept. 30, was assigned to Siemens Industry Inc. (Alpharetta, Ga.).

"Building automation system and method for managing causal chain for fault detection and diagnostics" was invented by Heinrich Helmut Degen (Plainsboro, N.J.), Christof J. Budnik (Hamilton, N.J.), Gregory Conte (Gulf Breeze, Fla.), Andrew Lintereur (Austin, Texas) and Seth Weber (Dover, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is disclosed a building automation system, and a method thereof, for managing causal chain. Facility data of the building automation system is collected. One or more suggested causes and one or more causal chains are generated ba...