Patents by Inventor Hung Anthony Pham

Hung Anthony Pham 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).

  • Suppressor for continuous electrochemically suppressed ion chromatography and method
    Publication number: 20020192832
    Abstract: Methods and devices for continuous electrochemically suppressed ion chromatography are disclosed. In preferred aspect of the invention, a chromatography effluent comprising analyte ions and electrolyte is split into a first chromatography effluent flow stream and a second chromatography effluent flow stream. Electrolysis ions selected from the group consisting of hydronium ions and hydroxide ions are generated by the electrolysis of water. Electrolysis ions of the same charge as the electrolyte and the second chromatography effluent stream are flowed through a stationary phase thereby suppressing the electrolyte in the second chromatography effluent flow stream. The analyte ions are subsequently detected in the suppressed second chromatography effluent flow stream.
    Type: Application
    Filed: July 8, 2002
    Publication date: December 19, 2002
    Applicant: Alltech Associates, Inc.
    Inventors: James M. Anderson, Raaidah Saari-Hordhaus, Bart C. Benedict, Carl Sims, Yuri Gurner, Hung Anthony Pham
  • Suppressor for continuous electrochemically suppressed ion chromatography and method
    Patent number: 6468804
    Abstract: Methods and devices for continuous electrochemically suppressed ion chromatography are disclosed. In preferred aspect of the invention, a chloromatography effluent comprising analyte ions and electrolyte is split into a first chromatography effluent flow stream and a second chromatography effluent flow stream. Electrolysis ions selected from the group consisting of hydronium ions and hydroxide ions are generated by the electrolysis of water. Electrolysis ions of the same charge as the electrolyte and the second chromatography effluent stream are flowed through a stationary phase thereby suppressing the electrolyte in the second chromatography effluent flow stream. The analyte ions are subsequently detected in the suppressed second chromatography effluent flow stream.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: October 22, 2002
    Assignee: Alltech Associates, Inc.
    Inventors: James M. Anderson, Jr., Raaidah Saari-Hordhaus, Bart C. Benedict, Carl Sims, Yuri Gurner, Hung Anthony Pham
  • Ion chromatography apparatus and method for removing gas prior to sample detection
    Patent number: 6444475
    Abstract: Methods and devices for removing gas prior to detecting analyte ions are discolored. In one aspect of the invention, gas by-products from the suppression of the mobile phase are removed prior to detecting analyte ions at a detector. In another aspect, the amount of dissolved carbonic acid is reduced in a suppressed carbonate/bicarbonate mobile phase by removing carbon dioxide gas.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: September 3, 2002
    Assignee: Alltech Associates, Inc.
    Inventors: James M. Anderson, Jr., Raaidah Saari-Hordhaus, Bart C. Benedict, Carl W. Sims, Yuri Gurner, Hung Anthony Pham