US Patent Issued to M.A.R.G. on March 18 for "Aqueous and solid ammonium sulfate fertilizers and methods of producing" (Indiana Inventor)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,450, issued on March 18, was assigned to M.A.R.G. LLC (Valparaiso, Ind.).

"Aqueous and solid ammonium sulfate fertilizers and methods of producing" was invented by Scott Severson (Valparaiso, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Aqueous and solid ammonium sulfate fertilizers derived from an organic feedstock and a mineral sulfate compound. The aqueous fertilizers have at least 3.5% nitrogen and at least 4% sulfur, and the solid fertilizers have about 21% nitrogen and about 24% sulfur. Methods for producing the fertilizers include preparing an organic feedstock by causing organic waste to undergo anaerobic digestion, removing solids f...