Patents by Inventor Victor Manuel Berber Barreto

Victor Manuel Berber Barreto 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).

  • Capillary ion chromatography
    Patent number: 9283495
    Abstract: An apparatus for capillary ion chromatography comprising a suppressor comprising flow-through ion exchange packing in a housing and capillary tubing formed of a permselective ion exchange membrane, and at least partially disposed in said ion exchange packing. Also, a recycle conduit for aqueous liquid from the detector to the packing. Further, the capillary tubing may have weakly acidic or weakly basic functional groups. Also, a method for using the apparatus.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: March 15, 2016
    Assignee: DIONEX CORPORATION
    Inventors: Yan Liu, Victor Manuel Berber Barreto, Christopher A. Pohl, Nebojsa Avdalovic
  • CAPILLARY ION CHROMATOGRAPHY
    Publication number: 20130180922
    Abstract: An apparatus for capillary ion chromatography comprising a suppressor comprising flow-through ion exchange packing in a housing and capillary tubing formed of a permselective ion exchange membrane, and at least partially disposed in said ion exchange packing. Also, a recycle conduit for aqueous liquid from the detector to the packing. Further, the capillary tubing may have weakly acidic or weakly basic functional groups. Also, a method for using the apparatus.
    Type: Application
    Filed: March 6, 2013
    Publication date: July 18, 2013
    Inventors: Yan LIU, Victor Manuel Berber BARRETO, Christopher A. POHL, Nebojsa AVDALOVIC
  • Capillary ion chromatography
    Patent number: 8415168
    Abstract: An apparatus for capillary ion chromatography comprising a suppressor comprising flow-through ion exchange packing in a housing and capillary tubing formed of a permselective ion exchange membrane, and at least partially disposed in said ion exchange packing. Also, a recycle conduit for aqueous liquid from the detector to the packing. Further, the capillary tubing may have weakly acidic or weakly basic functional groups. Also, a method for using the apparatus.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: April 9, 2013
    Assignee: Dionex Corporation
    Inventors: Yan Liu, Victor Manuel Berber Barreto, Christopher A. Pohl, Nebojsa Avdalovic
  • CAPILLARY ION CHROMATOGRAPHY
    Publication number: 20120228227
    Abstract: An apparatus for capillary ion chromatography comprising a suppressor comprising flow-through ion exchange packing in a housing and capillary tubing formed of a permselective ion exchange membrane, and at least partially disposed in said ion exchange packing. Also, a recycle conduit for aqueous liquid from the detector to the packing. Further, the capillary tubing may have weakly acidic or weakly basic functional groups. Also, a method for using the apparatus.
    Type: Application
    Filed: May 23, 2012
    Publication date: September 13, 2012
    Applicant: DIONEX CORPORATION
    Inventors: Yan Liu, Victor Manuel Berber Barreto, Christopher A. Pohl, Nebojsa Avdalovic
  • Capillary ion chromatography
    Patent number: 8216515
    Abstract: An apparatus for capillary ion chromatography having a suppressor having flow-through ion exchange packing in a housing and capillary tubing formed of a permselective ion exchange membrane, and at least partially disposed in said ion exchange packing. Also, a recycle conduit for aqueous liquid from the detector to the packing. Further, the capillary tubing may have weakly acidic or weakly basic functional groups. Also, a method for using the apparatus.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: July 10, 2012
    Assignee: Dionex Corporation
    Inventors: Yan Liu, Victor Manuel Berber Barreto, Christopher A. Pohl, Nebojsa Avdalovic
  • Recycled suppressor regenerants
    Patent number: 8021555
    Abstract: A suppressed ion chromatographic apparatus using a regenerant recycle loop, comprising (a) an ion separation device, (b) a membrane suppressor, (c) a detector, (d) a container for regenerant solution, (e) a first conduit between the ion separation device and the suppressor, (f) a second conduit between the regenerant solution container and the suppressor, (g) a third conduit between the suppressor and the regenerant solution container, and (h) a regenerant solution recycle loop out of fluid communication with the detector outlet.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: September 20, 2011
    Assignee: Dionex Corporation
    Inventors: Yan Liu, Victor Manuel Berber Barreto, Christopher A. Pohl, John M. Riviello
  • Recycled Suppressor Regenerants
    Publication number: 20090101582
    Abstract: A suppressed ion chromatographic apparatus using a regenerant recycle loop, comprising (a) an ion separation device, (b) a membrane suppressor, (c) a detector, (d) a container for regenerant solution, (e) a first conduit between the ion separation device and the suppressor, (f) a second conduit between the regenerant solution container and the suppressor, (g) a third conduit between the suppressor and the regenerant solution container, and (h) a regenerant solution recycle loop out of fluid communication with the detector outlet.
    Type: Application
    Filed: December 17, 2008
    Publication date: April 23, 2009
    Applicant: Dionex Corporation
    Inventors: Yan Liu, Victor Manuel Berber Barreto, Christopher A. Pohl, John M. Riviello
  • Recycled suppressor regenerants
    Patent number: 7473354
    Abstract: A suppressed ion chromatographic apparatus using a regenerant recycle loop, comprising (a) an ion separation device, (b) a membrane suppressor, (c) a detector, (d) a container for regenerant solution, (e) a first conduit between the ion separation device and the suppressor, (f) a second conduit between the regenerant solution container and the suppressor, (g) a third conduit between the suppressor and the regenerant solution container, and (h) a regenerant solution recycle loop out of fluid communication with the detector outlet.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: January 6, 2009
    Assignee: Dionex Corporation
    Inventors: Yan Liu, Victor Manuel Berber Barreto, Christopher A. Pohl, John M. Riviello
  • Capillary ion chromatography
    Publication number: 20060057733
    Abstract: An apparatus for capillary ion chromatography comprising a suppressor comprising flow-through ion exchange packing in a housing and capillary tubing formed of a permselective ion exchange membrane, and at least partially disposed in said ion exchange packing. Also, a recycle conduit for aqueous liquid from the detector to the packing. Further, the capillary tubing may have weakly acidic or weakly basic functional groups. Also, a method for using the apparatus.
    Type: Application
    Filed: September 16, 2004
    Publication date: March 16, 2006
    Inventors: Yan Liu, Victor Manuel Berber Barreto, Christopher Pohl, Nebojsa Avdalovic