Patents by Inventor Hermann Wunderlich

Hermann Wunderlich 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).

  • Process for preparing aminonaphthalene derivatives in a titanium or titanium alloy reactor
    Patent number: 4065492
    Abstract: Aminonaphthalene derivatives are prepared by reacting the corresponding naphthol derivative with ammonia or amines in the presence of bisulfites. The reaction is carried out in a continuous procedure in reaction apparatus which consists wholly or partly of titanium or a titanium alloy, carbon largely excluded. Suitable alloys are titanium/palladium, titanium/nickel or titanium/molybdenum.
    Type: Grant
    Filed: June 22, 1976
    Date of Patent: December 27, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg Spielberger, Hermann Wunderlich, Gunther Klag, Marko Zlokarnik