Patents by Inventor Volker Ebbighausen

Volker Ebbighausen 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).

  • Substituted 4,5-dihydroxy-imidazolidine-2-thiones and their use as ectoparasiticides
    Patent number: 4173645
    Abstract: The present invention provides, as compounds, the substituted 4,5-dihydroxy-imidazolidine-2-thiones of the general formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3, which are selected independently of one another each represent hydrogen, optionally substituted alkyl, optionally substituted alkoxy or halogen andR.sup.4 represents optionally substituted alkyl, cycloalkyl or alkenyl.It has been found that the compounds of this invention have a powerful ectoparasiticidal action, in particular against acarids.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: November 6, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Edgar Enders, Volker Ebbighausen, Wolfgang Gau, Christian Wunsche, Wilhelm Stendel