Patents by Inventor Wilhelm Stendal

Wilhelm Stendal 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).

  • Ectoparasiticide-containing polyurethanes
    Patent number: 4544547
    Abstract: The invention relates to ectoparasiticide-containing polyurethanes which contain spreading agents and ectoparasiticides or mixtures of ectoparasiticides and to said ectoparasiticide-containing polyurethanes in the form of sheets, films, shaped articles, coatings or impregnations. Also included in the invention is the use of said polyurethane compositions for combating ectoparasiticides.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: October 1, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Miklos von Bittera, Hubert Dorn, Dietmar Schapel, Wilhelm Stendal, Herbert Voege, Manfred Federman, Ulrich von Gizyoki