Patents by Inventor Alfred Zissel

Alfred Zissel 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).

  • Dehairing skin and hide
    Patent number: 4175922
    Abstract: Process for dehairing skin and hide with mercapto compounds in the presence of an alkaline medium in a short liquor.
    Type: Grant
    Filed: November 15, 1972
    Date of Patent: November 27, 1979
    Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellschaft
    Inventors: Guenter Eckert, France Knaflic, Franz-Friedrich Miller, Alfred Zissel