Patent 9056804 was granted and assigned to Incitec Pivot on June, 2015 by the United States Patent and Trademark Office.
There is provided a liquid urease inhibitor formulation comprising an urease inhibitor and a primary solvent selected from the group consisting of dialkyl sulfones, polymethylene cyclic sulfones, and mixtures thereof. A method for inhibiting urease hydrolysis of urea containing fertilizer or waste using said liquid urease inhibitor formulation is also described.