Patents by Inventor Jin Po Lee

Jin Po Lee 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).

  • Publication number: 20190004040
    Abstract: The present invention relates to an assay device and a method for using such for the quantitative determination of an analyte, based on a test strip, which contains a porous test membrane allowing for capillary flow of the analyte and complexes of the analyte, a porous upstream membrane in fluid connection with the test membrane and a porous downstream membrane in fluid connection with the test membrane, wherein the test membrane contains a test site having immobilized thereon a ligand capable of reacting with the analyte and binding such to the test site, and two standard band sites having immobilized thereon known high and low concentrations of a calibrator agent capable of reacting with a label conjugate and binding such to the standard sites, wherein the upstream membrane has a site for the application of a sample to be analyzed, and has a site downstream from the sample application site for depositing label conjugates capable of reacting with the analyte and label conjugates capable of reacting with the
    Type: Application
    Filed: December 27, 2017
    Publication date: January 3, 2019
    Inventor: Jin Po LEE
  • Publication number: 20170199182
    Abstract: The present invention relates to an assay device and a method for using such for the quantitative determination of an analyte, based on a test strip, which contains a porous test membrane allowing for capillary flow of the analyte and complexes of the analyte, a porous upstream membrane in fluid connection with the test membrane and a porous downstream membrane in fluid connection with the test membrane, wherein the test membrane contains a test site having immobilized thereon a ligand capable of reacting with the analyte and binding such to the test site, and two standard band sites having immobilized thereon known high and low concentrations of a calibrator agent capable of reacting with a label conjugate and binding such to the standard sites, wherein the upstream membrane has a site for the application of a sample to be analyzed, and has a site downstream from the sample application site for depositing label conjugates capable of reacting with the analyte and label conjugates capable of reacting with the
    Type: Application
    Filed: January 19, 2017
    Publication date: July 13, 2017
    Inventor: Jin Po LEE
  • Patent number: 9557329
    Abstract: The present invention related to a quantitative assay device and a method for the determination of an analyte, based on a test strip, which contains a porous test membrane allowing for capillary flow of the analyte and complexes of the analyte, a porous upstream membrane in fluid connection with the test membrane and a porous downstream membrane in fluid connection with the test membrane, wherein the test membrane contains two bands having deposited on there high and low concentrations of different calibrator agents and a test band capable of reacting with conjugated analyte complexes giving rise to a measurable signal.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: January 31, 2017
    Assignee: Assurance LLC
    Inventor: Jin Po Lee
  • Publication number: 20150140552
    Abstract: The present invention related to a quantitative assay device and a method for the determination of an analyte, based on a test strip, which contains a porous test membrane allowing for capillary flow of the analyte and complexes of the analyte, a porous upstream membrane in fluid connection with the test membrane and a porous downstream membrane in fluid connection with the test membrane, wherein the test membrane contains two bands having deposited on there high and low concentrations of different calibrator agents and a test band capable of reacting with conjugated analyte complexes giving rise to a measurable signal.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventor: Jin Po LEE
  • Patent number: 8900881
    Abstract: The present invention relates to a quantitative assay device and a method for the determination of an analyte, based on a test strip, which contains a porous test membrane allowing for capillary flow of the analyte and complexes of the analyte, a porous upstream membrane in fluid connection with the test membrane and a porous downstream membrane in fluid connection with the test membrane, wherein the test membrane contains two bands having deposited on there high and low concentrations of different calibrator agents and a test band capable of reacting with conjugated analyte complexes giving rise to a measurable signal.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: December 2, 2014
    Inventor: Jin Po Lee
  • Patent number: 8623291
    Abstract: The present invention relates to an assay device capable of testing for multiple analytes such as drugs using individual test strips for each analyte.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: January 7, 2014
    Inventor: Jin Po Lee
  • Patent number: 8455263
    Abstract: The present invention relates to an assay device and a method for using such for the quantitative determination of an analyte, based on a test strip, which contains a porous test membrane allowing for capillary flow of the analyte and complexes of the analyte, a porous upstream membrane in fluid connection with the test membrane and a porous downstream membrane in fluid connection with the test membrane, wherein the test membrane contains a test site having immobilized thereon a ligand capable of reacting with the analyte and binding such to the test site, and two standard band sites having immobilized thereon known high and low concentrations of a calibrator agent capable of reacting with a label conjugate and binding such to the standard sites, wherein the upstream membrane has a site for the application of a sample to be analyzed, and has a site downstream from the sample application site for depositing label conjugates capable of reacting with the analyte and label conjugates capable of reacting with the
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: June 4, 2013
    Inventor: Jin Po Lee
  • Patent number: 8202487
    Abstract: An assay device allowing for the testing for multiple analytes in a liquid sample simultaneously by employing a multiplicity of analyte testing strips which protrude from a housing containing slots for each assay test strip and wherein the flow of sample of the test strip is controlled by a cover over the sample contact pad which is inserted into the sample.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: June 19, 2012
    Inventor: Jin Po Lee
  • Publication number: 20120028245
    Abstract: The present invention relates to a quantitative assay device and a method for the determination of an analyte, based on a test strip, which contains a porous test membrane allowing for capillary flow of the analyte and complexes of the analyte, a porous upstream membrane in fluid connection with the test membrane and a porous downstream membrane in fluid connection with the test membrane, wherein the test membrane contains two bands having deposited on there high and low concentrations of different calibrator agents and a test band capable of reacting with conjugated analyte complexes giving rise to a measurable signal.
    Type: Application
    Filed: September 12, 2011
    Publication date: February 2, 2012
    Inventor: Jin Po Lee
  • Publication number: 20100196200
    Abstract: A biological test strip is disclosed and includes a source end, at least one test line and at least two control lines. The source end is used for dropping a sample liquid thereon. The at least one test line is used to react with at least one sample of the sample liquid to generate a colorization reaction. The at least two control lines are used to react with the sample liquid to generate at least two colorization reactions with different color darkness, so as to define a predetermined maximum concentration value and a predetermined minimum concentration value, both of which can be used as color comparison references for the at least one test line.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 5, 2010
    Applicants: KAIWOOD TECHNOLOGY CO., LTD.
    Inventors: Tsung-kai Chuang, Jin Po Lee
  • Publication number: 20100167264
    Abstract: The present invention relates to an assay device and a method for using such for the quantitative determination of an analyte, based on a test strip, which contains a porous test membrane allowing for capillary flow of the analyte and complexes of the analyte, a porous upstream membrane in fluid connection with the test membrane and a porous downstream membrane in fluid connection with the test membrane, wherein the test membrane contains a test site having immobilized thereon a ligand capable of reacting with the analyte and binding such to the test site, and two standard band sites having immobilized thereon known high and low concentrations of a calibrator agent capable of reacting with a label conjugate and binding such to the standard sites, wherein the upstream membrane has a site for the application of a sample to be analyzed, and has a site downstream from the sample application site for depositing label conjugates capable of reacting with the analyte and label conjugates capable of reacting with the
    Type: Application
    Filed: December 30, 2008
    Publication date: July 1, 2010
    Inventor: Jin Po Lee
  • Patent number: 7347972
    Abstract: A test device and associated method of use composed of a housing (100) defined by base (101) and cover (110). The base (101) has a closed end (104) and an open end (106). Slots (102a, 102b, etc.) are formed within the base (101) and are separated by rails (103a, 103b, etc.) where test strips (105a, 105b, etc.) are inserted.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: March 25, 2008
    Inventor: Jin Po Lee
  • Patent number: 7118667
    Abstract: The present invention relates to biosensors having improved sample application and measuring properties and their uses for detection, preferably, quantitative measurement, of analyte in a liquid sample. In particular, the invention provides for a biosensor having a sample application, reaction area and liquid soluble hydrophilic material facilitating the speed and uniformity of sample application, especially small volume sample application, via capillary flow. Methods for assaying analytes or enzymes using the biosensors are further provided.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: October 10, 2006
    Inventor: Jin Po Lee
  • Patent number: 6793802
    Abstract: The present invention relates to biosensors having improved sample application and measuring properties and their uses for detection, preferably, quantitative measurement, of analyte in a liquid sample. In particular, the invention provides for a biosensor having a sample application and reaction chamber facilitating the speed and uniformity of sample application, especially small volume sample application, via capillary flow. The invention also provides for a biosensor having multiple circuits that lead to improved assay consistency and accuracy. Methods for assaying analytes or enzymes using the biosensors are further provided.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: September 21, 2004
    Assignee: Tyson Bioresearch, Inc.
    Inventors: Jin Po Lee, Tong-Yuh Huang
  • Publication number: 20040162690
    Abstract: A method and system for automatically and optically analyzing one or more test devices using a digital scanner coupled to a computer. In one embodiment, the method and system utilizes a template for use in conjunction with the scanner wherein one or more test devices are received and held within respective windows in the template. In this way, the template prevents any significant movement of the test devices in the scanning device during scanning, thereby allowing an accurate scan of the color indicators of each test device. In a further embodiment, the windows of the template define target areas for analysis by imaging software that analyzes the digital images of the test devices.
    Type: Application
    Filed: November 4, 2003
    Publication date: August 19, 2004
    Inventor: Jin Po Lee
  • Patent number: 6753159
    Abstract: The invention provides an enzyme-based device and process for manufacture of the device in a shelf-stable form. The device consists of a dry phase test strip useful in detecting the presence and concentration of uric acid in a liquid sample (such as urine) and has a stabilized uricase-containing working solution impregnated therein. Methods for manufacturing the device to maintain the stability of the working solution, especially the enzyme components therof, are also described. A method for making the uric acid measurement in one step is also provided, wherein the one step to be performed consists of applying the liquid sample to the test strip of the device.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: June 22, 2004
    Inventor: Jin Po Lee
  • Patent number: 6730268
    Abstract: Devices, and methods for the use of same, for collecting and assaying a biological fluid in a single step. One method provides means to control and direct the flow of a sample of the biological fluid directly onto an assay test strip by disposing the assay test strip within a flow control channel in which the internal ambient pressure is maintained in substantial equilibrium with the ambient pressure outside of the flow control channel, such that essentially no pressure gradient is formed within the flow control channel. The devices include the flow control channel, at least one assay test strip and a fluid sample collection container, such as a urine cup, for insertion of the flow control channel therein.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: May 4, 2004
    Inventors: Jin Po Lee, Poyi Tseng
  • Publication number: 20040031698
    Abstract: The present invention relates to biosensors having improved sample application and measuring properties and their uses for detection, preferably, quantitative measurement, of analyte in a liquid sample. In particular, the invention provides for a biosensor having a sample application and reaction chamber facilitating the speed and uniformity of sample application, especially small volume sample application, via capillary flow. The invention also provides for a biosensor having multiple circuits that lead to improved assay consistency and accuracy. Methods for assaying analytes or enzymes using the biosensors are further provided.
    Type: Application
    Filed: January 4, 2001
    Publication date: February 19, 2004
    Inventors: Jin Po Lee, Tong-Yuh Huang
  • Publication number: 20030207466
    Abstract: The present invention provides an analytical test device for conducting assays of biological fluids. Methods for carrying out the assays with the disclosed analytical test device are also provided.
    Type: Application
    Filed: August 6, 2001
    Publication date: November 6, 2003
    Applicant: SYNTRON BIORESEARCH, INC.
    Inventor: Jin Po Lee
  • Patent number: D580559
    Type: Grant
    Filed: November 17, 2007
    Date of Patent: November 11, 2008
    Assignee: Kaiwood Technology Co., Ltd.
    Inventors: Jin-Po Lee, Tsung-Kai Chuang, Tzu-Chiang Wu, Jiann-Hua Wang