Xi Chen

US Patent:

7230159, Jun 12, 2007

Filed:

Mar 5, 2003

Appl. No.:

10/505744

Inventors:

Tesfaye Mengiste - West Lafayette IN, US
Xi Chen - Research Triangle Park NC, US
John Salmeron - Research Triangle Park NC, US
Robert Dietrich - Research Triangle Park NC, US

Assignee:

Syngenta Participations AG - Basel

International Classification:

C12N 15/82
C12N 15/09
A01H 5/00

US Classification:

800279, 800278, 800298, 536 241, 4353201, 435468

Abstract:

The present invention pertains to an isolated promoter sequence from BOSI gene encoding a protein for biotic and abiotic stress tolerance. Also, the invention relates to recombinant vectors, expression cassettes, host cells, plants or progeny thereof comprising nucleic acid molecules operably linked to said promoter.

US Patent:

20020132320, Sep 19, 2002

Filed:

Jan 10, 2001

Appl. No.:

09/758525

Inventors:

Peng Wang - Troy MI, US
Xi Chen - Norristown PA, US
Ziye Liu - Detroit MI, US
Wei Zhang - Detroit MI, US

International Classification:

C12P019/04
C12N009/10
C12N009/24
C12N015/00

US Classification:

435/193000, 435/200000, 435/320100, 435/325000, 435/101000

Abstract:

This invention relates to methods and compositions for the production of glycoconjugates. In particular, organisms are provided with at least one heterologous gene encoding an enzyme for regenerating a sugar nucleotide along with at least one glycosyltransterase. Such organisms are useful for the large-scale synthesis of glycoconjugates.

US Patent:

20020150968, Oct 17, 2002

Filed:

Jan 10, 2001

Appl. No.:

09/757846

Inventors:

Peng Wang - Troy MI, US
Xi Chen - Norristown PA, US

International Classification:

C12P033/20
C12P021/02
C12P019/20
C12N011/18

US Classification:

435/053000, 435/068100, 435/096000, 435/175000

Abstract:

This invention relates to methods and compositions for the in vitro production of glycoconjugates. In particular, a preferred production system is provided that comprises a solid support, at least one sugar nucleotide producing enzyme, at least one glycosyltransferase, at least one bioenergetic, and at least one acceptor. The sugar nucleotide producing enzyme(s) is preferably immobilized on the solid support. The glycosyltransferase may be co-immobilized on the solid support with the sugar nucleotide producing enzyme(s), or may be provided to the solid support in solution.

US Patent:

20110171093, Jul 14, 2011

Filed:

Jan 11, 2011

Appl. No.:

13/004606

Inventors:

Gary Rochelle - Austin TX, US
Stephanie Freeman - Austin TX, US
Xi Chen - Austin TX, US
Thu Nguyen - Austin TX, US
Alexander Voice - Austin TX, US
Humera Rafique - Austin TX, US

International Classification:

B01D 53/62
B01F 1/00

US Classification:

423228, 252364

Abstract:

Compositions and methods related to the removal of acidic gas. In one embodiment, compositions and methods are provided for the removal of acidic gas from a gas mixture using an aqueous amine solvent comprising water, a first amine, and a second amine, wherein the first amine contributes at least 50% by weight of the solvent's total amine concentration.

US Patent:

20110198101, Aug 18, 2011

Filed:

Aug 19, 2009

Appl. No.:

12/998384

Inventors:

Aaron W. Sanders - Missouri City TX, US
Ed G. Rightor - Maidland MI, US
Keith p. Johnston - Austin TX, US
Stephanie Adkins - Austin TX, US
Quoc Nguyen - Austin TX, US
Xi Chen - Austin TX, US

International Classification:

E21B 43/16
C07C 43/04

US Classification:

166402, 568679

Abstract:

Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO-philicity in a range of about 1.5 to about 5.0, carbon dioxide in a liquid phase or supercritical phase, and water, where the nonionic, non-emulsifying surfactant promotes a formation of a stable foam formed of carbon dioxide and water.

US Patent:

20120103635, May 3, 2012

Filed:

Aug 19, 2009

Appl. No.:

13/382166

Inventors:

Aaron W. Sanders - Missouri City TX, US
Keith P. Johnston - Austin TX, US
Quoc Nguyen - Austin TX, US
Stephanie Adkins - Austin TX, US
Xi Chen - Austin TX, US
Ed G. Rightor - Midland MI, US

International Classification:

E21B 43/16

US Classification:

166402

Abstract:

Embodiments of the present disclosure include dispersion compositions having a nonionic surfactant for use in enhanced petroleum recovery, and methods of using the dispersion compositions in petroleum recovery processes. For the various embodiments, the nonionic surfactant of the dispersion composition promotes the formation of a dispersion from carbon dioxide and water.

US Patent:

20210269318, Sep 2, 2021

Filed:

Jun 20, 2019

Appl. No.:

17/252360

Inventors:

- Houston TX, US
Fei TIAN - Houston TX, US
Gang CHEN - Carlisle MA, US
Bai SONG - Cambridge MA, US
Ke CHEN - Cambridge MA, US
Li SHI - Austin TX, US
Xi CHEN - Austin TX, US
Sean SULLIVAN - Austin TX, US
David BROIDO - Needham MA, US
Navaneetha Krishnan RAVICHANDRAN - Chestnut Hill MA, US

Assignee:

University of Houston System - Houston TX

International Classification:

C01B 35/04
C30B 29/40

Abstract:

A method for growing bulk boron arsenide (BA) crystals, the method comprising utilizing a seeded chemical vapor transport (CVT) growth mechanism to produce single BAs crystals which are used for further CVT growth, wherein a sparsity of nucleation centers is controlled during the further CVT growth. Also disclosed are bulk BAs crystals produced via the method.

US Patent:

20150000909, Jan 1, 2015

Filed:

Sep 5, 2014

Appl. No.:

14/478491

Inventors:

Aaron W. Sanders - Missouri City TX, US
Keith P. Johnston - Austin TX, US
Quoc Nguyen - Austin TX, US
Stephanie Adkins - Austin TX, US
Xi Chen - Austin TX, US
Ed G. Rightor - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C09K 8/584
E21B 43/16

US Classification:

1662701

Abstract:

Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO-philicity in a range of about 1.5 to about 5.0, carbon dioxide in a liquid phase or supercritical phase, and water, where the nonionic, non-emulsifying surfactant promotes a formation of a stable foam formed of carbon dioxide and water.