Patents by Inventor Till Keesmann

Till Keesmann 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).

  • FIELD EMISSION DEVICE
    Publication number: 20100052511
    Abstract: The invention relates to a field emission device comprising a cathode having an emission region (1) for electrons (2). The field emission device is embodied for generating technically useful electron currents at a voltage which is as low as possible, in such a way that the emission region (1) has an arrangement of a plurality of individually positioned or positionable atoms (4) or molecules.
    Type: Application
    Filed: November 15, 2007
    Publication date: March 4, 2010
    Inventor: Till Keesmann
  • Field emission cathode using carbon fibers
    Publication number: 20040036402
    Abstract: A field emission cathode device consisting of an electrically conducting material and with a narrow, rod-shaped geometry or a knife edge, to achieve a high amplification of the electric field strength is characterized in that the electron-emitting part of the field emission cathode at least partly has preferred cylindrical host molecules and/or compounds with host compounds and/or cylindrical atomic networks, possibly with end caps with diameters measuring in the nanometer range.
    Type: Application
    Filed: April 8, 2003
    Publication date: February 26, 2004
    Inventors: Till Keesmann, Hubert Grosse-Wilde
  • Field emission cathode having an electrically conducting material shaped of a narrow rod or knife edge
    Patent number: 5773921
    Abstract: A field emission cathode device consisting of an electrically conducting material and with a narrow, rod-shaped geometry or a knife edge, to achieve a high amplification of the electric field strength is characterized in that the electron-emitting part of the field emission cathode at least partly has preferred cylindrical host molecules and/or compounds with host compounds and/or cylindrical atomic networks, possibly with end caps with diameters measuring in the nanometer range.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: June 30, 1998
    Inventors: Till Keesmann, Hubert Grosse-Wilde
  • Field emission cathode having an electrically conducting material shaped of a narrow rod or knife edge
    Patent number: RE38223
    Abstract: A field emission cathode device consisting of an electrically conducting material and with a narrow, rod-shaped geometry or a knife edge, to achieve a high amplification of the electric field strength is characterized in that the electron-emitting part of the field emission cathode at least partly has preferred cylindrical host molecules and/or compounds with host compounds and/or cylindrical atomic networks, possibly with end caps with diameters measuring in the nanometer range.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: August 19, 2003
    Inventors: Till Keesmann, Hubert Grosse-Wilde
  • Field emission cathode
    Patent number: RE38561
    Abstract: A field emission cathode device consisting of an electrically conducting material and with a narrow, rod-shaped geometry or a knife edge, to achieve a high amplification of the electric field strength is characterized in that the electron-emitting part of the field emission cathode at least partly has preferred cylindrical host molecules and/or compounds with host compounds and/or cylindrical atomic networks, possibly with end caps with diameters measuring in the nanometer range.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: August 3, 2004
    Inventors: Till Keesmann, Hubert Grosse-Wilde