Patents by Inventor Stephen A. Lammert

Stephen A. Lammert 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).

  • Miniature toroidal radio frequency ion trap mass analyzer
    Patent number: 9053919
    Abstract: A scaled down version of a toroidal radio frequency (RF) ion trap mass analyzer operating with RF trapping voltages on the order of 1 kVp-p yet despite the reduced dimensions, retains roughly the same ion trapping volume as conventional 3D quadrupole ion traps, wherein the curved geometry enables construction of a compact mass analyzer and easy interface with conventional electron multipliers.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: June 9, 2015
    Assignee: BRIGHAM YOUNG UNIVERSITY
    Inventors: Stephen A. Lammert, Samuel E. Tolley, Jeffrey L. Jones, Randall W. Waite, Edgar D. Lee, Milton L. Lee
  • Miniature toroidal radio frequency ion trap mass analyzer
    Publication number: 20120267523
    Abstract: A scaled down version of a toroidal radio frequency (RF) ion trap mass analyzer operating with RF trapping voltages on the order of 1 kVp-p yet despite the reduced dimensions, retains roughly the same ion trapping volume as conventional 3D quadrupole ion traps, wherein the curved geometry enables construction of a compact mass analyzer and easy interface with conventional electron multipliers.
    Type: Application
    Filed: December 13, 2006
    Publication date: October 25, 2012
    Inventors: Stephen A. Lammert, Samuel E. Tolley, Jeffrey L. Jones, Randall W. Waite, Edgar D. Lee, Milton L. Lee
  • Virtual ion trap
    Patent number: 7375320
    Abstract: A virtual ion trap that uses electric focusing fields instead of machined metal electrodes that normally surround the trapping volume, wherein two opposing surfaces include a plurality of uniquely designed and coated electrodes, and wherein the electrodes can be disposed on the two opposing surfaces using plating techniques that enable much higher tolerances to be met than existing machining techniques.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: May 20, 2008
    Assignee: Brigham Young University
    Inventors: Edgar D. Lee, Alan L. Rockwood, Randall Waite, Stephen A. Lammert, Milton L. Lee
  • Virtual ion trap
    Patent number: 7227138
    Abstract: A virtual ion trap that uses electric focusing fields instead of machined metal electrodes that normally surround the trapping volume, wherein two opposing surfaces include a plurality of uniquely designed and coated electrodes, and wherein the electrodes can be disposed on the two opposing surfaces using plating techniques that enable much higher tolerances to be met than existing machining techniques.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: June 5, 2007
    Assignee: Brigham Young University
    Inventors: Edgar D. Lee, Alan L. Rockwood, Randall Waite, Stephen A. Lammert, Milton L. Lee