Patents by Inventor Jung-Tzu Chang

Jung-Tzu Chang 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).

  • Patent number: 6942769
    Abstract: The electrode test strip is used with an electrochemical sensor for measuring an analyte in an aqueous sample, e.g., glucose in blood. The electrode strip includes an elongated electrode support, a first and second electrode on the support, a slotted dielectric layer, a screen and a slotted cover layer, all disposed atop each and atop the electrodes in the support. The dielectric layer and the cover layer are typically adhesively attached (the adhesive layers further define the slot). The slot is open to the terminal end of the test strip and the cover. The screen, interposed in the slot, has a porosity between 10%-40% to control analyte flow and volume in the slot and over the test area defined by electrode legs. Further refinements include utilizing a surfactant on the screen.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: September 13, 2005
    Assignee: BT Medical Corp.
    Inventors: Chen-Heng Cheng, Jung Cheng, Jung-Tzu Chang
  • Publication number: 20050029097
    Abstract: The electrode test strip is used with an electrochemical sensor for measuring an analyte in an aqueous sample, e.g., glucose in blood. The electrode strip includes an elongated electrode support, a first and second electrode on the support, a slotted dielectric layer, a screen and a slotted cover layer, all disposed atop each and atop the electrodes in the support. The dielectric layer and the cover layer are typically adhesively attached (the adhesive layers further define the slot). The slot is open to the terminal end of the test strip and the cover. The screen, interposed in the slot, has a porosity between 10%-40% to control analyte flow and volume in the slot and over the test area defined by electrode legs. Further refinements include utilizing a surfactant on the screen.
    Type: Application
    Filed: August 5, 2003
    Publication date: February 10, 2005
    Inventors: Chen-Heng Cheng, Jung Cheng, Jung-Tzu Chang