Patents by Inventor William C. Feldman

William C. Feldman 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).

  • Linear electric field time-of-flight ion mass spectrometer
    Patent number: 7385188
    Abstract: A linear electric field ion mass spectrometer having an evacuated enclosure with means for generating a linear electric field located in the evacuated enclosure and means for injecting a sample material into the linear electric field. A source of pulsed ionizing radiation injects ionizing radiation into the linear electric field to ionize atoms or molecules of the sample material, and timing means determine the time elapsed between ionization of atoms or molecules and arrival of an ion out of the ionized atoms or molecules at a predetermined position.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: June 10, 2008
    Assignee: Los Alamos National Security, LLC
    Inventors: Herbert O. Funsten, William C. Feldman
  • Continuous time-of-flight ion mass spectrometer
    Patent number: 6806467
    Abstract: A continuous time-of-flight mass spectrometer having an evacuated enclosure with means for generating an electric field located in the evacuated enclosure and means for injecting a sample material into the electric field. A source of continuous ionizing radiation injects ionizing radiation into the electric field to ionize atoms or molecules of the sample material, and timing means determine the time elapsed between arrival of a secondary electron out of said ionized atoms or molecules at a first predetermined location and arrival of a sample ion out of said ionized atoms or molecules at a second predetermined location.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: October 19, 2004
    Assignee: The Regents of the University of California
    Inventors: Herbert O. Funsten, William C. Feldman