Patents by Inventor Christian Ziesch

Christian Ziesch 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).

  • Filtering device, filter element and method of manufacturing the filter element used for the preparation of brewed beverages
    Patent number: 6189438
    Abstract: The invention is directed to a filtering device, a filter element therefor and a method of manufacturing the filter element (28) from filter paper. The filter element (28) has a receiving cavity (76) to be filled with extractable materials such as coffee grounds or tea leaves. Following contact with hot water, the extractable materials deliver extractive substances to the water, resulting in a brewed beverage that is drained from the filter element (28). During this process, the filter element (28) is held by the filter support (1) by way of a supporting member which includes a rim (39) formed on the filter element (28) and having a bearing surface (40), and a supporting surface (24) formed on the filter support (1). The rim (39) of the filter element (28) is reinforced mechanically by providing the filter paper with exposed pleats (42, 51, 52) which cooperate with corresponding elevations (115) and recesses (79) formed on the supporting surface (24) of the filter support (1).
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: February 20, 2001
    Assignee: Braun GmbH
    Inventors: Uwe Bielfeldt, Christof Kleemann, Reinhard Stücher, Bernd Trebitz, Horst Emmerich, Dieter Friedrich, Christian Ziesch, Frank Gliemroth
  • Filter paper
    Patent number: D424369
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: May 9, 2000
    Assignee: Braun Aktiengesellschaft
    Inventors: Uwe Bielfeldt, Christof Kleemann, Reinhard Stucher, Bernd Trebitz, Horst Emmerich, Dieter Friedrich, Christian Ziesch, Frank Gliemroth