Patents by Inventor Stavros Papamichael

Stavros Papamichael 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).

  • Herbicidal compositions
    Patent number: 3954439
    Abstract: The invention relates to herbicidal compositions in granular form comprising a herbicidal material and at least 5% by weight, preferably 5% to 15% by weight, based on total solids of one or more surfactants.
    Type: Grant
    Filed: March 8, 1973
    Date of Patent: May 4, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Stavros Papamichael, Ross Mortimore Ward Dyer