US Patent Issued to Perimeter Solutions on May 19 for "Long-term fire retardant with magnesium sulfate and corrosion inhibitors and methods for making and using same" (Montana, California, Hawaii Inventors)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,629,555, issued on May 19, was assigned to Perimeter Solutions LP (Clayton, Mo.).

"Long-term fire retardant with magnesium sulfate and corrosion inhibitors and methods for making and using same" was invented by Dennis Hulbert (Corvallis, Mont.), Robert J. Burnham (Stevensville, Mont.), Michael S. Schnarr (Roseville, Calif.), Gerald Geissler (Kailua-Kona, Hawaii), David W. Wilkening (Ronan, Mont.) and Joseph McLellan (Rocklin, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A forest fire retardant composition contains a retardant compound that includes a halide salt, a non-halide salt, a metal oxide, a metal hydroxide, a sulfate salt, or combination...