Patents by Inventor Erich Leister

Erich Leister 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).

  • CCVD method for producing tubular carbon nanofibers
    Patent number: 7384668
    Abstract: The invention relates to a CCVD method for producing tubular carbon nanofibers on a support by catalytically depositing carbon out of the vapor phase. The inventive method is characterized in that a catalyst layer, which is deposited without current and which is based on nickel or cobalt, is applied to the support at least in places. Said catalyst layer is thermally activated before depositing carbon out of the vapor phase in a reducing atmosphere.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: June 10, 2008
    Assignee: Electrovac, Fabrikation Elektrotechnischer Spezialartikel Gesellschraft m.b.H.
    Inventors: Klaus Mauthner, Erich Leister, Ernst Hammel
  • Ccvd method for producing tubular carbon nanofibers
    Publication number: 20040081758
    Abstract: The invention relates to a CCVD method for producing tubular carbon nanofibers on a support by catalytically depositing carbon out of the vapor phase. The inventive method is characterized in that a catalyst layer, which is deposited without current and which is based on nickel or cobalt, is applied to the support at least in places. Said catalyst layer is thermally activated before depositing carbon out of the vapor phase in a reducing atmosphere.
    Type: Application
    Filed: September 10, 2003
    Publication date: April 29, 2004
    Inventors: Klaus Mauthner, Erich Leister, Ernst Hammel