Patents by Inventor Heide Dahmen

Heide Dahmen 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).

  • Fungicidal use of a cyanopyrrole derivative and method for producing same
    Patent number: 5112849
    Abstract: 3-Cyano-4-(2,3-dichlorophenyl)pyrrole is suitable for controlling phytopathogenic microorganisms and is markedly superior in activity to preparation of a similar structure. Said compound may be employed for seed dressing, either along or in the form of compositions.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: May 12, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Theodor Staub, Heide Dahmen, Robert Nyfeler, Robert J. Williams