Patents by Inventor Stanley Wallace Hawkins

Stanley Wallace Hawkins 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).

  • Fertilizers containing nitrification inhibitor
    Patent number: 4078912
    Abstract: This invention provides a method for nitrification of ammonium-nitrogen in soil by treating the soil with a compound having the formula X.sub.2 CS.sub.3 or XS.CS.OR wherein X is Na, K or NH.sub.4 and R is alkyl. The invention also provides a fertilizer composition comprising the said compound in combination with an ammonium-nitrogen-containing fertilizer.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: March 14, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Stanley Wallace Hawkins