Patents by Inventor Willem T. Hulshof

Willem T. Hulshof 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).

  • Herbicides and fungicides containing activity promoting additives
    Patent number: 5226943
    Abstract: The activity of herbicide and fungicide compositions is enhanced by the incorporation therein of certain alkoxylated fatty amines, amidoamines or imidazolines. The alkoxylation of the amines is conducted with ethylene oxide and either propylene oxide or butylene oxide using a molar ratio of ethylene oxide to the other oxide in the range from 1:14 to 13:2 and to such extent that the molecular weight of the alkoxylated product is kept below 2500.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: July 13, 1993
    Assignee: Akzo N.V.
    Inventor: Willem T. Hulshof