Jin Y Lee

US Patent:

6372514, Apr 16, 2002

Filed:

Sep 18, 1998

Appl. No.:

09/157279

Inventors:

Jin Po Lee - Poway CA

Assignee:

Syntron Bioresearch, Inc. - Carlsbad CA

International Classification:

G01N 33543

US Classification:

436518, 422 56, 422 57, 422 58, 435 5, 435 6, 435 71, 435 72, 435 792, 4352872, 4352878, 435805, 435970, 436164, 436169, 436172, 436510, 436514, 436527, 436808, 436810, 436 46, 436165

Abstract:

Test strip device for accepting a liquid sample and forming an even fluid front across the test strip. When the sample is applied to a contacting surface, it runs down the surface where it collects between the contacting surface and a slope surface. As the sample collects, it evenly reaches fluid flow contact with an absorbent membrane. As a result, the sample forms an even fluid front across the membrane, improving the performance of the test strip device. Methods for using the device to accept a sample and to detect an analyte in the liquid sample are also provided.

US Patent:

6514769, Feb 4, 2003

Filed:

Jul 29, 1999

Appl. No.:

09/364277

Inventors:

Jin Po Lee - Poway CA 92064

International Classification:

G01N 33543

US Classification:

436518, 436524, 436538, 436810, 435 71, 435 72, 435174, 435970, 435971, 422 56, 422 58, 422104, 422110

Abstract:

An assay device, a fluid analyte sample separator device and methods for use of thereof for determining whether the integrity of a fluid analyte sample has been compromised and for contemporaneously assaying the sample for the presence or absence of multiple analytes, such as drugs of abuse. The device is composed of a housing having separate slots therein for insertion of one or more analyte test strips, one end of which protrudes from the housing, and one or more units of a sample integrity monitoring system. The device may be used in dipstick or cassette form. An analyte sample separator for division of sample and retention of uncontaminated sample for further testing is also provided. The analyte test strips and sample integrity monitoring system are replaceable, so that the panel of analytes and of sample condition parameters tested can be customized.

US Patent:

6548019, Apr 15, 2003

Filed:

Mar 23, 2000

Appl. No.:

09/509378

Inventors:

Jin Po Lee - Poway CA 92064
Poyi Tseng - Taipei, TW

Assignee:

Jin Po Lee - Poway CA

International Classification:

G01N 2100

US Classification:

422 58, 422102, 422 99, 422 681

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.

US Patent:

6581234, Jun 24, 2003

Filed:

Apr 2, 2001

Appl. No.:

09/824854

Inventors:

Jin Po Lee - Carlsbad CA 92009
Cheng-Chieh Chiang - Taipei, TW

International Classification:

A46B 708

US Classification:

15 28, 15 221

Abstract:

The present invention relates to replaceable dental brush units useful in an electric toothbrush. In particular, the invention provides for a replaceable dental brush unit useful in an electric toothbrush that uses gear links for connecting and driving motions of bristle head by motors.

US Patent:

6730268, May 4, 2004

Filed:

Feb 13, 2003

Appl. No.:

10/366921

Inventors:

Jin Po Lee - Poway CA 92064
Poyi Tseng - Taipei, TW

Assignee:

Jin Po Lee - Poway CA

International Classification:

G01N 2100

US Classification:

422 58, 422 55, 422 56, 422 681, 422 57, 422 99, 422102, 436178, 436180, 436518

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.

US Patent:

6753159, Jun 22, 2004

Filed:

Nov 8, 2001

Appl. No.:

10/130320

Inventors:

Jin Po Lee - Poway CA 92064

International Classification:

C12Q 158

US Classification:

435 12, 435 10, 4352871, 435970

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.

US Patent:

6793802, Sep 21, 2004

Filed:

Jan 4, 2001

Appl. No.:

09/754858

Inventors:

Jin Po Lee - Carlsbad CA
Tong-Yuh Huang - Taitung, TW

Assignee:

Tyson Bioresearch, Inc. - Taiwan

International Classification:

G01N 27327

US Classification:

2057775, 20440314, 204401

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.

US Patent:

7118667, Oct 10, 2006

Filed:

Jun 2, 2004

Appl. No.:

10/860730

Inventors:

Jin Po Lee - Carlsbad CA, US

International Classification:

G01N 27/327

US Classification:

2057775, 20440304, 20440302, 427 213

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.