ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,202, issued on Nov. 18.

"Two-step method to produce monocalcium phosphates from lime softening water plant residuals" was invented by Alexander P Mathews (Manhattan, Kan.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure provides a two-step process to produce monocalcium phosphates from lime water treatment plant lime softening residuals and from other sources containing calcium salts. This patent focuses on the reuse of lime softening residuals to produce monocalcium phosphates and dicalcium phosphates for use in a variety of applications including as quick release and slow release fertilizers, for animal feed and other applications. T...