Patents by Inventor Edward E. Tarver

Edward E. Tarver 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).

  • Time dispersive spectrometer using digital switching means
    Patent number: 6787762
    Abstract: Methods and apparatus are described for time dispersive spectroscopy. In particular, a modulated flow of ionized molecules of a sample are introduced into a drift region of an ion spectrometer. The ions are subsequently detected by an ion detector to produce an ion detection signal. The ion detection signal can be modulated to obtain a signal useful in assaying the chemical constituents of the sample.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: September 7, 2004
    Assignee: Sandia National Laboratories
    Inventors: Edward E. Tarver, III, William F. Siems
  • Time dispersive spectrometer using digital switching means
    Publication number: 20030226964
    Abstract: Methods and apparatus are described for time dispersive spectroscopy. In particular, a modulated flow of ionized molecules of a sample are introduced into a drift region of an ion spectrometer. The ions are subsequently detected by an ion detector to produce an ion detection signal. The ion detection signal can be modulated to obtain a signal useful in assaying the chemical constituents of the sample.
    Type: Application
    Filed: March 20, 2003
    Publication date: December 11, 2003
    Inventors: Edward E. Tarver, William F. Siems
  • Method and apparatus for time dispersive spectroscopy
    Patent number: 6580068
    Abstract: Methods and apparatus are described for time dispersive spectroscopy. In particular, a modulated flow of ionized molecules of a sample are introduced into a drift region of an ion spectrometer. The ions are subsequently detected by an ion detector to produce an ion detection signal. The ion detection signal can be modulated to obtain a signal useful in assaying the chemical constituents of the sample.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: June 17, 2003
    Assignee: Sandia Corporation
    Inventors: Edward E. Tarver, III, William F. Siems
  • Composition for regenerating an ion exchange resin
    Publication number: 20020132866
    Abstract: A method and composition for removing perchlorate from a highly selective ion exchange resin is disclosed. The disclosed approach comprises treating the resin in a solution of super critical or liquid carbon dioxide and one or more quaternary ammonium chloride surfactant compounds.
    Type: Application
    Filed: January 14, 2002
    Publication date: September 19, 2002
    Inventors: William R. Even, Jennifer A. Irvin, Edward E. Tarver, Gilbert M. Brown, James C. F. Wang
  • Method and solvent composition for regenerating an ion exchange resin
    Patent number: 6407143
    Abstract: A method and composition for removing perchlorate from a highly selective ion exchange resin is disclosed. The disclosed approach comprises treating the resin in a solution of super critical or liquid carbon dioxide and one or more quaternary ammonium chloride surfactant compounds.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: June 18, 2002
    Assignee: Sandia Corporation
    Inventors: William R. Even, David J. Irvin, Jennifer A. Irvin, Edward E. Tarver, Gilbert M. Brown, James C. F. Wang