ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,935, issued on Dec. 16, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Three-rail power supply system" was invented by Igor Strashny (Tucson, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A three-rail power supply system includes a power supply having positive, negative, and neutral terminals, a rail system having a power supply end and a termination end, and an asymmetric resistor network. The rail system includes a positive rail, a negative rail, and a ground rail coupled to the positive terminal, the negative terminal, and the neutral terminal, respectively. The negative rail is disposed parallel to the positive rail. The ground rail is...