Patents by Inventor David Da Yong Chen

David Da Yong Chen 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).

  • Self contained capillary electrophoresis system for interfacing with mass spectrometry
    Patent number: 8613845
    Abstract: A complete capillary electrophoresis (CE) system that is capable of providing a continuous flow of effluent at the exit of the flow-through outlet vial is provided. A self-contained capillary electrophoresis system with a flow-through outlet vial for interfacing with mass spectrometry includes a capillary having an upstream inlet end and a downstream terminus end; an electrically conductive hollow needle having an inner wall defining an internal tapered chamber, the internal tapered chamber dimensioned and configured to slidably accept the terminus end of the capillary, the capillary longitudinally inserted into and mounted within the internal tapered chamber to a distance whereby the terminus end of the capillary abuts the inner wall of the needle at the taper; and wherein a micro-reservoir is formed between the terminus end of the capillary and the downstream exit orifice.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: December 24, 2013
    Assignee: The University of British Columbia
    Inventors: Elizabeth Jane Maxwell, Xuefei Zhong, Hong Zhang, David Da Yong Chen
  • SELF CONTAINED CAPILLARY ELECTROPHORESIS SYSTEM FOR INTERFACING WITH MASS SPECTROMETRY
    Publication number: 20110042216
    Abstract: A complete capillary electrophoresis (CE) system that is capable of providing a continuous flow of effluent at the exit of the flow-through outlet vial is provided. A self-contained capillary electrophoresis system with a flow-through outlet vial for interfacing with mass spectrometry includes a capillary having an upstream inlet end and a downstream terminus end; an electrically conductive hollow needle having an inner wall defining an internal tapered chamber, the internal tapered chamber dimensioned and configured to slidably accept the terminus end of the capillary, the capillary longitudinally inserted into and mounted within the internal tapered chamber to a distance whereby the terminus end of the capillary abuts the inner wall of the needle at the taper; and wherein a micro-reservoir is formed between the terminus end of the capillary and the downstream exit orifice.
    Type: Application
    Filed: March 6, 2009
    Publication date: February 24, 2011
    Applicant: THE UNIVERSITY OF BRITISH COLUMBIA
    Inventors: Elizabeth Jane Maxwell, Xuefei Zhong, Hong Zhang, David Da Yong Chen