Patents by Inventor Walter Jaeckle

Walter Jaeckle 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).

  • Semi-continuous process for obtaining amino compounds
    Patent number: 4179476
    Abstract: A semi-continuous process for manufacturing aliphatic or aromatic amino compounds by reduction of the corresponding nitro compounds in an acid medium with iron which is etched with acids or salts is provided.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: December 18, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerhard Franz, Georg Halfter, Walter Jaeckle, Fritz Mindermann