ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,434, issued on Sept. 9, was assigned to First Ammonia Motors Inc. (Concord, N.C.).

"Systems and methods for sequential energization of heating elements in an electric catalyst unit for ammonia dissociation" was invented by James L. Wall II (Concord, N.C.) and David Gwynn Kapp Jr. (Concord, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates, in general, to a system and method for sequentially energizing heating elements in an electric catalyst unit for ammonia dissociation on-board a vehicle. The present invention utilizes output temperature readings at various sections within the electric catalyst unit, and sequential...