Patents by Inventor Stuart Carl Hansen

Stuart Carl Hansen 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).

  • Method and apparatus for trapping ions
    Patent number: 7989765
    Abstract: An ion trap comprising elongate rods, electrodes, a first circuit, and a second circuit. The rods are for defining the radial extent of a trapping volume. The first circuit is connected to the rods for applying thereto a first RF signal that generates adjacent the trapping volume a radial RF containment field that radially contains ions of different polarities within the trapping volume. The electrodes define the axial extent of the trapping volume. The second circuit is connected to the electrodes for applying thereto a second RF signal that generates adjacent the trapping volume an axial RF containment field that axially contains the ions of different polarities within the trapping volume. The axial RF containment field is independent of the radial RF containment field.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: August 2, 2011
    Assignee: Agilent Technologies, Inc.
    Inventor: Stuart Carl Hansen
  • Method and Apparatus for Trapping Ions
    Publication number: 20090140141
    Abstract: An ion trap comprising elongate rods, electrodes, a first circuit, and a second circuit. The rods are for defining the radial extent of a trapping volume. The first circuit is connected to the rods for applying thereto a first RF signal that generates adjacent the trapping volume a radial RF containment field that radially contains ions of different polarities within the trapping volume. The electrodes define the axial extent of the trapping volume. The second circuit is connected to the electrodes for applying thereto a second RF signal that generates adjacent the trapping volume an axial RF containment field that axially contains the ions of different polarities within the trapping volume. The axial RF containment field is independent of the radial RF containment field.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Applicant: Agilent Technologies, Inc.
    Inventor: Stuart Carl Hansen