Patents by Inventor Walter C. Crouse

Walter C. Crouse has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High nutrient value liquid fertilizer
    Patent number: 4832735
    Abstract: A liquid fertilizer containing about 6% to 9% nitrogen (N), 24% to 30% phosphoruspentoxide (P.sub.2 O.sub.5), and 5% to 9% potassium oxide (K.sub.2 O). The fertilizer is produced by the reaction of ammonium phosphate solution with phosphoric acid and a potassium-containing compound, such as potassium hydroxide.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: May 23, 1989
    Assignee: Na-Churs Plant Food Company
    Inventors: Walter C. Crouse, Owen M. McIntyre