Ming L Zheng

US Patent:

7374649, May 20, 2008

Filed:

Nov 18, 2003

Appl. No.:

10/716347

Inventors:

Anand Jagota - Wilmington DE, US
Ming Zheng - Wilmington DE, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

G01N 27/447

US Classification:

204456, 204466

Abstract:

Carbon nanotubes dispersed by a stabilized solution of nucleic acid molecules formed separated nanotube-nucleic acid complexes and were separated according to standard chromatographic methods, including gel electrophoresis, two phase solvent systems and ion exchange chromatography.

US Patent:

7498423, Mar 3, 2009

Filed:

Nov 18, 2003

Appl. No.:

10/716346

Inventors:

Ming Zheng - Wilmington DE, US
Bruce A. Diner - Chadds Ford PA, US

Assignee:

E.I. Du Pont de Nemours & Company - Wilmington DE

International Classification:

C07H 21/04
C12Q 1/68
C12M 1/36

US Classification:

536 231, 435 6, 4352831, 4352872

Abstract:

Nucleic acid molecules in a stabilized solution such as single stranded DNA and RNA were able to disperse high concentration of bundled carbon nanotubes into aqueous solution.

US Patent:

7588941, Sep 15, 2009

Filed:

Oct 31, 2006

Appl. No.:

11/590564

Inventors:

Ming Zheng - Wilmington DE, US
Bruce A. Diner - Chadds Ford PA, US

Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C12Q 1/68
C12M 1/00
C07H 21/04

US Classification:

436 6, 4352831, 4352872, 536 231, 536 241, 536 243

Abstract:

Nucleic acid molecules in a stabilized solution such as single stranded DNA and RNA were able to disperse high concentration of bundled carbon nanotubes into aqueous solution.

US Patent:

8038853, Oct 18, 2011

Filed:

Jun 18, 2007

Appl. No.:

11/764334

Inventors:

Vsevolod Rostovtsev - Swarthmore PA, US
Ming Zheng - Wilmington DE, US

Assignee:

E.I. du Pont de Nemours and Company - Wilimington DE

International Classification:

C25B 9/00

US Classification:

204242, 205637, 20415752

Abstract:

Described herein is a method for the photo-induced reduction/oxidation of carbon nanotubes, and their use in photochemical cells and in electrochemical cells for the generation of hydrogen.

US Patent:

8147721, Apr 3, 2012

Filed:

Dec 9, 2009

Appl. No.:

12/633901

Inventors:

Hong Meng - Wilmington DE, US
Yulong Shen - Wilmington DE, US
Ming Zheng - Wilmington DE, US

Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE

International Classification:

H01B 1/00
C08G 75/00
C08G 73/06

US Classification:

252500, 528377, 528423

Abstract:

The present invention relates to electrically conductive polymer compositions, and their use in organic electronic devices. The electrically conductive polymer compositions include an intrinsically conductive polymer having at least on monomer unit derived from Formula I:.

US Patent:

8252165, Aug 28, 2012

Filed:

Aug 22, 2008

Appl. No.:

12/196431

Inventors:

Ming Zheng - Wilmington DE, US
Lap-Tak Andrew Cheng - Newark DE, US

Assignee:

E I du Pont de Nemours and Company - Wilmington DE

International Classification:

C25D 9/02
C25D 9/04

US Classification:

205109, 205316, 313311, 445 51

Abstract:

This invention relates to the electrochemical deposition of carbon nanotubes (“CNTs”) on a substrate using an electrochemical cell. A dispersion of a complex of CNTs and an anionic polymer is neutralized and thereby caused to deposit on the anode plate of the cell.

US Patent:

8414757, Apr 9, 2013

Filed:

Feb 26, 2010

Appl. No.:

12/714420

Inventors:

Steven Dale Ittel - Wilmington DE, US
Gillian Althea Maria Reynolds - Wilmington DE, US
Ming Zheng - Wilmington DE, US

Assignee:

E I du Pont de Nemours and Company - Wilmington DE

International Classification:

C25D 9/00
H01J 1/02

US Classification:

205220, 205118, 205316, 205317, 313311, 445 51

Abstract:

The disclosure relates to processes for the electrochemical modification of electron emitting materials such as carbon nanotubes. The processes improve the oxidation resistance of the electron emitting materials when they are fired in an oxygen-containing atmosphere such as air. The disclosure also relates to the preparation of cathodes or cathode assemblies, for use in a field emission device, wherein are contained an electron field emitter made from such electron emitting material.

US Patent:

20030068611, Apr 10, 2003

Filed:

Mar 15, 2002

Appl. No.:

10/098818

Inventors:

Robert Larossa - Wilmington DE, US
Ming Zheng - Wilmington DE, US

International Classification:

C12Q001/00

US Classification:

435/004000

Abstract:

Up-regulation of the genetic machinery that regulates the oxidative stress response has been found to increase microbial cell tolerance to toxic substances and to increase the metabolic efficiency of native and recombinant enzymatic pathways, resulting in higher end product yields.