Patents by Inventor David A. Eichholtz

David A. Eichholtz 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).

  • Glyphosate-tolerant 5-enolpyruvyl-3-phosphoshikimate synthases
    Patent number: 5310667
    Abstract: Glyphosate-tolerant 5-enolpyruvyl-3-phosphoshikimate (EPSP) synthases, DNA encoding glyphosate-tolerant EPSP synthases, plant genes encoding the glyphosate-tolerant enzymes, plant transformation vectors containing the genes, transformed plant cells and differentiated transformed plants containing the plant genes are disclosed. The glyphosate-tolerant EPSP synthases are prepared by substituting an alanine residue for a glycine residue in a first conserved sequence found between positions 80 and 120, and either an aspartic acid residue or asparagine residue for a glycine residue in a second conserved sequence found between positions 120 and 160 in the mature wild type EPSP synthase.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: May 10, 1994
    Assignee: Monsanto Company
    Inventors: David A. Eichholtz, Charles S. Gasser, Ganesh M. Kishore