Patents by Inventor William J. Verdegaal

William J. Verdegaal 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).

  • Process for making liquid fertilizer
    Patent number: 4310343
    Abstract: A new improved process for making liquid fertilizer having a high nitrogen and sulfur content has been developed in which urea and sulfuric acid are mixed. Exothermic heat, which normally builds up in successive reactions is dissipated via use of a non-reactive, nutritive heat sink, preferably comprising a predetermined amount of previously produced fertilizer.
    Type: Grant
    Filed: November 27, 1979
    Date of Patent: January 12, 1982
    Assignee: Verdegaal Bros. Fertilizer
    Inventors: William J. Verdegaal, George F. Verdegaal