Patents by Inventor Hugo Kaessner

Hugo Kaessner 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).

  • One piece agitator for closed vessel
    Patent number: 4213713
    Abstract: A one piece enameled agitator is equipped with an impeller that can be wound or threaded through an opening in an associated container or vessel that is smaller than the impeller diameter.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: July 22, 1980
    Assignee: Pfaudler Werke A.G.
    Inventors: Hugo Kaessner, Wilhelm Loehr