Stephen C Chen

US Patent:

8506901, Aug 13, 2013

Filed:

Nov 3, 2011

Appl. No.:

13/288900

Inventors:

Stephen L Chen - Anaheim CA, US
KC Chen - Anaheim CA, US
Neeraj Kapoor - Anaheim CA, US

Assignee:

Teco Diagnostics - Anaheim CA

International Classification:

G01N 33/00

US Classification:

422402, 422400, 422401, 422430, 422 681, 422561

Abstract:

A biological material test strip and adjacently-located reference color chart are affixed to a lid portion of an all-in-one specimen cup to perform color-based reaction testing of collected biological specimens in an uncalibrated environment. After specimen collection, the lid portion is secured to a container portion of the specimen cup. The cup may then be rotated into an upside down position causing the specimen, under the force of gravity, to pass from the container portion and into a volume of the lid portion, such that the test strip is exposed to the specimen as it is received into the volume of the lid portion. An image of the exposed test strip and adjacently-located reference color chart may then be captured and processed to identify any color matches between the individual test pads on the test strip and the corresponding sequences of reference color blocks on the reference chart.

US Patent:

20070163912, Jul 19, 2007

Filed:

Jan 18, 2006

Appl. No.:

11/334023

Inventors:

Stephen Chen - El Monte CA, US

International Classification:

B65D 73/00

US Classification:

206477000, 221171000, 22131200A, 248095000

Abstract:

A shifting rail is introduced into a package of disposable shoe covers for facilitating dispense of shoe covers onto shoe cover application devices. The shifting rail engages with each unit of shoe covers in the package sequentially. During application, shoe covers shift along the rail in sequential order towards the shoe cover application device.

US Patent:

20070186441, Aug 16, 2007

Filed:

Feb 13, 2006

Appl. No.:

11/352725

Inventors:

Stephen Chen - El Monte CA, US

International Classification:

A43B 1/10

US Classification:

036007300

Abstract:

An easy wearing disposable shoe cover and a wearing method are provided. The shoe cover has a rear portion, distinguished from a front portion, being capable of flipping around a sole. An elastic band, being omitted from front portion, strains the rear portion to be lower than front portion, which exposes the front portion of the shoe cover widely for an easy insertion of the shoe into the shoe cover without using hands.

US Patent:

20070196913, Aug 23, 2007

Filed:

Feb 18, 2006

Appl. No.:

11/357592

Inventors:

Stephen Chen - El Monte CA, US

International Classification:

C12M 1/22

US Classification:

435305100, 435288300

Abstract:

An improvement made to cell culture plates and dishes. The plastic bottom is made detachable for slides without using glass for cell culture. To detach a plate bottom, the user inserts a key to the plate and makes a 90-degree turn, which breaks a detaching ring and releases the plastic bottom as a circular disc with attached cells on it.

US Patent:

20070204568, Sep 6, 2007

Filed:

Mar 6, 2006

Appl. No.:

11/368721

Inventors:

Stephen Chen - El Monte CA, US

International Classification:

B65B 5/04
B65B 43/26

US Classification:

053459000, 053473000, 053571000

Abstract:

A device and method are provided for wearing a shoe cover onto a shoe without using hands. The device has a guiding system constructed in two parts. The first part is a disposable shift rail installed inside a package of shoe covers. The second part is a stretching path joining to the shift rail. With the guiding system, a reliable control of shoe cover movement is established.

US Patent:

20070287159, Dec 13, 2007

Filed:

Jun 12, 2006

Appl. No.:

11/451024

Inventors:

Stephen Liye Chen - El Monte CA, US

International Classification:

G01N 33/53
C12M 3/00

US Classification:

435 71, 4352872

Abstract:

A miniature lid is introduced to dramatically reduce antibody consumption. The miniature lid covers a specimen and force antibody solution to form a 1.5 mm thin layer so that specimen can be immersed completely in 0.1 ml volume.

US Patent:

20070292939, Dec 20, 2007

Filed:

Jun 15, 2006

Appl. No.:

11/453513

Inventors:

Stephen Liye Chen - El Monte CA, US

International Classification:

C12M 1/34

US Classification:

4352883, 4352887

Abstract:

A plastic culture insert with a concavity replaces glass coverslip for supporting organic culture. It can be freely placed into and removed from a multi-well plate. The concavity anchors a tissue via collagen polymerization. The concavity is then, after organic culture, sealed by a regular slide for data storage and microscopy imaging analysis.

US Patent:

20080029394, Feb 7, 2008

Filed:

Aug 7, 2006

Appl. No.:

11/500022

Inventors:

Stephen Liye Chen - El Monte CA, US

International Classification:

G01N 27/00

US Classification:

204606

Abstract:

Stackable horizontal gel system is introduced. Multiple units of apparatuses can be stacked together in a pile. Stacking gaps between every two neighboring units can be used to store gels for a month without wrapping. Engagement of every two units of neighboring apparatus forms a seal to prevent liquid loss of gel in storage.