Patents by Inventor Rudolf Ottmann

Rudolf Ottmann 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).

  • Spinneret cleaning device
    Patent number: 4255109
    Abstract: A spinneret cleaning device for removing deposits quickly, reliably and uniformly has an adjustable force flat plane cleaning blade.
    Type: Grant
    Filed: May 23, 1979
    Date of Patent: March 10, 1981
    Assignee: Akzona Incorporated
    Inventors: Hermann Emmerich, Rudolf Ottmann