ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,993, issued on April 7, was assigned to Orica International Pte Ltd (Singapore).
"Safety systems for commercial blasting operations" was invented by Steven E. Kotsonis (Singapore), Kaiyan Liu (Singapore), Aung Thu (Singapore), Walter Hardy Piel (Singapore), Francois Guillemette (Singapore), Daniel Mallette (Singapore) and David Martino (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "The safety systems for commercial blasting operations include wireless transmitter system(s) configured to send command signals wirelessly to wireless devices that are configured for wireless electronic blasting (web). The system also includes disable antenna(s...