Patents by Inventor John M. Bremner

John M. Bremner 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).

  • Method of inhibiting nitrification of ammonium nitrogen
    Patent number: 4552581
    Abstract: Phenylacetylene is added to agricultural field soil containing ammonium nitrogen fertilizer, thereby promoting nitrogen retention by inhibiting soil bacteria nitrification.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: November 12, 1985
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: John M. Bremner