Patents by Inventor Jürgen Dornseiffer

Jürgen Dornseiffer 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).

  • Patent number: 10403881
    Abstract: A method for producing a ceramic cathode layer on an electrically conductive substrate includes applying a coating to the electrically conductive substrate, the coating being in a form of a suspension including at least one suspending agent and at least one ceramic material. The method further includes heating the coating in a reducing atmosphere such that the ceramic material is completely or in part reduced to a fusible reaction product, heating the coating in a reducing atmosphere to temperatures above the melting point of the reaction product so as to form a melt, densifying or sintering the coating in a reducing atmosphere at temperatures that are 100° C. greater than a melting temperature of the reaction product, and reoxidizing the densified or sintered coating in an oxidizing atmosphere in a temperature range of between 400° C. and 1,200° C.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: September 3, 2019
    Assignee: FORSCHUNGSZENTRUM JUELICH GMBH
    Inventors: Juergen Dornseiffer, Hans-Gregor Gehrke, Manuel Krott, Olivier Guillon, Sven Uhlenbruck
  • Publication number: 20190013512
    Abstract: A method for producing a ceramic cathode layer on an electrically conductive substrate includes applying a coating to the electrically conductive substrate, the coating being in a form of a suspension including at least one suspending agent and at least one ceramic material. The method further includes heating the coating in a reducing atmosphere such that the ceramic material is completely or in part reduced to a fusible reaction product, heating the coating in a reducing atmosphere to temperatures above the melting point of the reaction product so as to form a melt, densifying or sintering the coating in a reducing atmosphere at temperatures that are 100° C. greater than a melting temperature of the reaction product, and reoxidizing the densified or sintered coating in an oxidizing atmosphere in a temperature range of between 400° C. and 1,200° C.
    Type: Application
    Filed: December 9, 2016
    Publication date: January 10, 2019
    Applicant: Forschungszentrum Juelich GmbH
    Inventors: Juergen Dornseiffer, Hans-Gregor Gehrke, Manuel Krott, Olivier Guillon, Sven Uhlenbruck
  • Patent number: 7666376
    Abstract: The invention relates to a device for the, (in particular continuous), oxidation of particulates from the exhaust gases of diesel motors. Said device consists of an open-pored body as a particle filter, on whose surface an oxidation catalyst is finely dispersed. The device is characterized in that from an exhaust gas temperature as low as 150° C., the catalyst causes the oxidation of particulates attached to the filter using the residual oxygen of the exhaust gas, thus keeping the filter body continuously free of particulates during almost all the operating conditions of the motor.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: February 23, 2010
    Assignee: Forschungszentrum Julich
    Inventors: Jürgen Dornseiffer, Helmut Hackfort, Edgar Hünnekes
  • Patent number: 6613293
    Abstract: In an electrically heated catalytic converter including a heater consisting of a structure having an open porosity so as to permit fluid to flow therethrough, a heterogeneous catalyst is disposed within the heater structure. The heater structure, which includes the catalyst, is capable of accommodating sufficient electrical energy to provide the activation energy required for a particular catalytic reaction to be performed by the catalytic converter.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: September 2, 2003
    Assignee: Forschungszentrum Jülich GmbH
    Inventors: Jürgen Dornseiffer, Helmut Hackfort