ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,117, issued on Jan. 27.

"Method for determining a change of a state of a track section of a railroad and corresponding apparatus" was invented by Christopher J. Schuchmann (Rockledge, Fla.), Jeffrey Fries (Grain Valley, Mo.), John Ross (West Melbourne, Fla.), Anuka Sawh (Melbourne, Fla.) and Shilpa Cherian (Melbourne, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method determines a change of a state of a track section of a railroad. The track section includes a first end electrically connected to a first track device, a second end electrically connected to a second track device, and rails connecting the first end with the second end. The tr...