ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,610, issued on Oct. 20, was assigned to KORD TECHNOLOGIES LLC (Huntsville, Ala.).

"System and method for safety signaling using optical fibers" was invented by David Benjamin Allison (Owens Cross Roads, Ala.) and Anthony Edward Megna (Huntsville, Ala.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A safety signaling system comprises a panel including an HMI for setting first operator safety condition to one of VOTE and NO VOTE, a first optical transceiver for connection to a first optical fiber and a second optical transceiver for connection to a second optical fiber. Panel control circuitry connected between HMI and first transceiver activates firs...