Patents by Inventor Ernst Drost

Ernst Drost 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).

  • Supported metal membrane, a process for its preparation and use
    Patent number: 6649559
    Abstract: The invention provides a supported metal membrane which contains a metal membrane on a support surface of a porous membrane support. The supported metal membrane is obtainable by applying the metal membrane to the support surface of the membrane support, wherein the pores in the membrane support are sealed, at least in the region of the support surface, prior to applying the metal membrane and are opened by removing the auxiliary substance only after applying the metal membrane.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: November 18, 2003
    Assignee: dmc2 Degussa Metals Catalysts Cerdec AG
    Inventors: Ernst Drost, Werner Kuhn, Meike Roos, Stefan Wieland, Bernd Kempf
  • Process for preparing a composite metal membrane, the composite metal membrane prepared therewith and its use
    Publication number: 20020028345
    Abstract: A process for preparing a composite metal membrane which contains a thin metal membrane with a desired thickness and a metallic membrane support with a porous structure, wherein metal membrane and membrane support consist of two different metals or metal alloys. The process is carried out by placing a precursor of the metal membrane on a non-porous precursor of the membrane support, the metal composite is then formed from the two precursors, the desired thickness of metal membrane is adjusted by mechanical working the metal composite and then the porous structure for the membrane support is produced.
    Type: Application
    Filed: August 13, 2001
    Publication date: March 7, 2002
    Inventors: Bernd Kempf, Werner Kuhn, Ernst Drost, Hans Hermann Beyer, Meike Roos, Stefan Wieland
  • Supported metal membrane, a process for its preparation and use
    Publication number: 20020020298
    Abstract: The invention provides a supported metal membrane which contains a metal membrane on a support surface of a porous membrane support. The supported metal membrane is obtainable by applying the metal membrane to the support surface of the membrane support, wherein the pores in the membrane support are sealed, at least in the region of the support surface, prior to applying the metal membrane and are opened by removing the auxiliary substance only after applying the metal membrane.
    Type: Application
    Filed: July 26, 2001
    Publication date: February 21, 2002
    Inventors: Ernst Drost, Werner Kuhn, Meike Roos, Stefan Wieland, Bernd Kempf
  • Heat-resistant platinum material
    Patent number: 5730931
    Abstract: A heat-resistant platinum material with more than 99.5% by weight platinum, with high long-term creep resistance and low grain growth at high temperature contains 0.1 to 0.35% by weight zirconium and/or zirconium oxide and 0.002 to 0.02% by weight boron and/or boron oxide.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: March 24, 1998
    Assignee: Degussa Aktiengesellschaft
    Inventors: Manfred Poniatowski, Ernst Drost, Stefan Zeuner