ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,256, issued on April 21, was assigned to Siemens Industry Inc. (Alpharetta, Ga.).

"Direct current solid-state airgap with parallel multi-throw switch" was invented by Guang Yang (Johns Creek, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A direct current (DC) switch circuit includes an isolation switch, and an interruption circuit connected in series with the isolation switch. The interruption circuit includes a parallel connection of a current conducting branch, a bypass power electronics branch, a gate driving branch, and an energy absorbing branch. The current conducting branch includes a multi-throw switch configured to operate in a first ...