George E Greene

US Patent:

7456025, Nov 25, 2008

Filed:

Jun 3, 2002

Appl. No.:

10/158881

Inventors:

Guoqiang Mao - Smyrna GA, US
Richard J. Coppola - Peachtree City GA, US
George Warren Greene - Peachtree City GA, US
George Yao - Peachtree City GA, US

Assignee:

Porex Corporation - Fairburn GA

International Classification:

G01N 21/77
G01N 21/00
C12M 3/00
C12N 11/08
G01N 31/22

US Classification:

436169, 436518, 435180, 4352877, 4352878, 422 56, 422 57

Abstract:

The present invention relates to a sintered porous polymeric material useful as membrane in an analyte detection device, such as a lateral flow device, flow through device, or a dipstick device. The invention encompasses an analyte detection device that comprises such a sintered porous polymeric material and method of analyte detection using such a device. Specific sintered porous polymeric materials encompassed by the invention are surface activated and further coated with one or more layers of a variety of materials.

US Patent:

20030062311, Apr 3, 2003

Filed:

Aug 23, 2002

Appl. No.:

10/226235

Inventors:

Li Yao - Peachtree City GA, US
George Greene - Peachtree City GA, US
Michael Arthur - Douglasville GA, US

Assignee:

POREX CORPORATION - Fairburn GA

International Classification:

B01D015/00

US Classification:

210/660000

Abstract:

This invention relates to processes for immobilizing ion exchange particles, and to the products of those process. One embodiment of the invention encompasses a process of immobilizing ion exchange particles within a porous polyolefinic material. A second embodiment encompasses a process of immobilizing ion exchange particles within a hydrogel. Preferred hydrogels are comprised of polyvinyl alcohol.

US Patent:

20030100086, May 29, 2003

Filed:

May 30, 2001

Appl. No.:

09/866842

Inventors:

Li Yao - Peachtree City GA, US
George Greene - Peachtree City GA, US
Guoqiang Mao - Smyrna GA, US
Xingguo Li - Peachtree City GA, US

International Classification:

C12N011/08
C07H021/00

US Classification:

435/177000, 435/180000, 536/022100, 428/500000

Abstract:

The invention relates to porous polymeric materials, methods of making them, and applications in medical devices. A specific embodiment of the invention encompasses a material comprising a porous polyolefin substrate containing inclusions of a material to which chemical or biological moieties are attached directly or via a spacer.

US Patent:

20030134100, Jul 17, 2003

Filed:

Nov 21, 2002

Appl. No.:

10/300734

Inventors:

Guoqiang Mao - Smyrna GA, US
George Greene - Peachtree City GA, US
Richard Coppola - Peachtree City GA, US
Li Yao - Peachtree City GA, US

International Classification:

B32B003/26

US Classification:

428/304400

Abstract:

This invention relates to porous polymeric materials having discrete regions that exhibit distinct surface properties. The invention also relates to methods of making such porous polymeric materials and their applications. The geography of the discrete regions can be determined in a selective and controlled manner. Porous materials having discrete regions of distinct hydrophilicity, hydrophobicity, oleophobicity, biological molecules binding capability, wetting and wicking property, presence or density of functional groups, chemical reactivity, electric charges, porosity and pore sizes can be manufactured using this invention.

US Patent:

20050118407, Jun 2, 2005

Filed:

Oct 26, 2004

Appl. No.:

10/972781

Inventors:

Li Yao - Peachtree City GA, US
George Greene - Peachtree City GA, US
Guoqiang Mao - Smyrna GA, US
Xingguo Li - Peachtree City GA, US

International Classification:

B32B003/26
B32B005/22

US Classification:

428304400, 428317900

Abstract:

The invention relates to porous polymeric materials, methods of making them, and applications in medical devices. A specific embodiment of the invention encompasses a material comprising a porous polyolefin substrate containing inclusions of a material to which chemical or biological moieties are attached directly or via a spacer.

US Patent:

20060280931, Dec 14, 2006

Filed:

Aug 18, 2006

Appl. No.:

11/506353

Inventors:

Guoqiang Mao - Smyrna GA, US
George Greene - Peachtree City GA, US
Li Yao - Peachtree City GA, US

International Classification:

B05D 1/36
B05D 1/04
B29C 71/04
B32B 3/26

US Classification:

428304400, 427532000, 427402000, 427458000

Abstract:

Multi-layer coated materials and methods of making them are disclosed. In a specific embodiment, a porous polymeric substrate is pre-activated and immersed in a polyelectrolyte solution to form a first layer having an electric charge and at least one functional group. The coated material is next immersed in a second solution of a material having an electric charge opposite of that of the first layer to provide a bi-layer coating. This process can be repeated to form multi-layer coatings on porous substrates.