Patents by Inventor Geoffrey Keyes

Geoffrey Keyes 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).

  • Gametocides
    Patent number: 4735649
    Abstract: Novel hydroxyalkylesters of N-phosphonomethylglycine have been identified which prove to be effective gametocides.
    Type: Grant
    Filed: September 25, 1985
    Date of Patent: April 5, 1988
    Assignee: Monsanto Company
    Inventors: Om P. Dhingra, John E. Franz, Geoffrey Keyes, Dale F. Loussaert, Cynthia S. Mamer