Patents by Inventor Richard H. Czurak

Richard H. Czurak 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).

  • Apparatus for the production of foamed fertilizers
    Patent number: 3989470
    Abstract: Particulate foamed fertilizers and combination products in which other active ingredients are combined with such fertilizers. Methods and apparatus for making foamed fertilizers and combination products in which provision is made for combining ingredients, curing, drying, and comminuting the material thus obtained, separating and agglomerating fines and adding them to the comminuted product, and incorporating active ingredients into the comminuted product.
    Type: Grant
    Filed: December 11, 1972
    Date of Patent: November 2, 1976
    Assignee: O. M. Scott & Sons Company
    Inventors: Richard H. Czurak, Robert M. Thompson