Clement K Choy from 1345 Sugarloaf Dr, Alamo, CA 94507, age 77, Phone: (925)9323738

Us Patents

Low Odor, Hard Surface Cleaner With Enhanced Soil Removal
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US Patent:

6399555, Jun 4, 2002
Filed:

May 18, 2001
Appl. No.:

09/861049
Inventors:

Michael H. Robbins - Hilden, DE
Jennifer C. Julian - Castro Valley CA
Suzanne M. Thompson - Oakland CA
Gary L. Robinson - Livermore CA
Clement K. Choy - Alamo CA
Elizabeth A. Gossett - Livermore CA
Assignee:

The Clorox Company - Oakland CA
International Classification:

C11D 129
US Classification:

510238, 510191, 510421, 510422, 510423, 510424, 510426, 510427, 510432, 510434, 510499, 510506, 134 40, 134 42
Abstract:

An aqueous hard surface cleaner with improved soil removal is provided and has, as components, the following: (a) either an anionic, nonionic, amphoteric surfactant, and mixtures thereof with optionally, a quaternary ammonium surfactant, the total amount of the surfactants being present in a cleaning effective amount; (b) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0. 001 mm Hg at 25Â C. , present in a solubilizingâor dispersionâeffective amount (c) a combination of (i) an incompletely neutralized potassium ethylenediamineâtetraacetate (EDTA) and (ii) a precipitating co-builder as chelating agents present in an amount effective to enhance soil removal in said cleaner; and (d) the remainder, water.

Variants Of Sp. Ts-23 Alpha-Amylase With Altered Properties
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US Patent:

8153412, Apr 10, 2012
Filed:

Nov 3, 2008
Appl. No.:

12/264006
Inventors:

Claudine Y. Chang - Mountain View CA, US
Clement Choy - Alamo CA, US
Melodie Estabrook - Mountain View CA, US
Mansi Goyal - Atherton CA, US
Thomas P. Graycar - Pacifica CA, US
Victoria E. Huang - Sunnyvale CA, US
Brian E. Jones - Leidschendam, NL
Marc Kolkman - Oegstgeest, NL
Karsten M. Kragh - Viby J, DK
Chris Leeflang - GA Twisk, NL
Scott D. Power - San Bruno CA, US
Sandra W. Ramer - Sunnyvale CA, US
Andrew Shaw - San Francisco CA, US
Casper Vroemen - Oegstgeest, NL
Walter Weyler - San Francisco CA, US
Assignee:

Danisco US Inc. - Palo Alto CA
International Classification:

C12N 9/28
C12N 9/26
C12N 9/24
C12N 1/20
C12N 15/00
A23C 17/00
A23L 1/28
C11D 3/02
C12D 3/00
C12D 3/386
C07H 21/04
C07K 1/00
US Classification:

435202, 435201, 435200, 435183, 435 691, 4352523, 43525231, 43525233, 43525235, 43525411, 4353201, 426 42, 426 56, 426 64, 536 232, 536 237, 536 231, 510218, 510226, 510300, 510320, 510392, 510530, 530350
Abstract:

Variants of sp. TS-23 strain alpha-amylases exhibit improved enzymatic performance, including increased themostability, reduced calcium dependence, increased washing/cleaning performance, and baking ability. Compositions comprising these variants are useful in methods of starch processing, starch liquefaction, fermatation, starch saccharification, cleaning, laundrying, textile desizing, baking, and biofilm removal.

Ts23 Alpha-Amylase Variants With Altered Properties
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US Patent:

8236545, Aug 7, 2012
Filed:

Feb 4, 2009
Appl. No.:

12/365646
Inventors:

Claudine Chang - Mountain View CA, US
Clement Choy - Alamo CA, US
Brian E Jones - Leidschendam, NL
Melodie Estabrook - Mountain View CA, US
Marc Kolkman - Oegstgeest, NL
Chris Leeflang - GA Twisk, NL
Casper Vroemen - Oegstgeest, NL
Walter Weyler - San Francisco CA, US
Assignee:

Danisco US Inc., Genencor Division - Palo Alto CA
International Classification:

C12P 21/06
C12N 9/00
C12N 9/28
C11D 3/386
C07K 1/00
C07H 21/04
US Classification:

435202, 435 691, 435183, 530350, 536 232
Abstract:

Described are variants (mutants) of a parent alpha-amylase having alpha-amylase activity and exhibiting altered properties relative to the parent alpha-amylase, and methods of use, thereof.

Ts-23 Alpha-Amylase Variants With Altered Properties
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US Patent:

8460916, Jun 11, 2013
Filed:

Jul 2, 2012
Appl. No.:

13/540064
Inventors:

Claudine Chang - Mountain View CA, US
Clement Choy - Alamo CA, US
Brian E. Jones - Leidschendam, NL
Melodie Estabrook - Mountain View CA, US
Marc Koklman - Oegstgeest, NL
Chris Leeflang - GA Twisk, NL
Casper Vroeman - Oegstgeest, NL
Walter Weyler - San Francisco CA, US
Assignee:

Danisco US Inc. - Palo Alto CA
International Classification:

C12P 21/06
C12N 9/00
C12N 9/28
C12N 1/20
C12N 15/00
C07K 17/00
C07H 21/04
US Classification:

4352523, 435 691, 435183, 435202, 4353201, 530350, 536 232
Abstract:

Described are variants (mutants) of a parent alpha-amylase having alpha-amylase activity and exhibiting altered properties relative to the parent alpha-amylase, and methods of use, thereof.

Variants Of Sp. Ts-23 Alpha-Amylase With Altered Properties
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US Patent:

8507244, Aug 13, 2013
Filed:

Mar 2, 2012
Appl. No.:

13/410486
Inventors:

Andrew Shaw - Palo Alto CA, US
Sandra Ramer - Palo Alto CA, US
Scott D. Power - Palo Alto CA, US
Claudine Chang - Palo Alto CA, US
Melodie Estabrook - Palo Alto CA, US
Brian E. Jones - Palo Alto CA, US
Clement Choy - Palo Alto CA, US
Chris Leeflang - Palo Alto CA, US
Casper Vroeman - Palo Alto CA, US
Walter Weyler - Palo Alto CA, US
Karsten Kraugh - Palo Alto CA, US
Mansi Goyal - Palo Alto CA, US
Thomas Graycar - Palo Alto CA, US
Victoria Huang - Palo Alto CA, US
Assignee:

Danisco US Inc. - Palo Alto CA
International Classification:

C12N 9/28
C12N 9/26
C12N 9/24
C12N 1/20
C12N 1/00
C12N 15/00
C12P 21/06
C12P 19/34
C07H 21/04
C07K 1/00
US Classification:

435202, 435201, 435200, 435 691, 435 911, 4353201, 4352523, 43525231, 43525233, 43525235, 43525411, 536 231, 536 232, 530350
Abstract:

Variants of sp. TS-23 strain alpha-amylases exhibit improved enzymatic performance, including increased thermostability, reduced calcium dependence, increased washing/cleaning performance, and baking ability. Compositions comprising these variants are useful in methods of starch processing, starch liquefaction, fermatation, starch saccharification, cleaning, laundrying, textile desizing, baking, and biofilm removal.

Binary Surfactant Systems For Developing Extensional Viscosity In Cleaning Compositions
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US Patent:

20050272630, Dec 8, 2005
Filed:

Jun 2, 2004
Appl. No.:

10/859646
Inventors:

Inderjeet Ajmani - Pleasanton CA, US
Lucia Tin - Carlsbad CA, US
Clement Choy - Alamo CA, US
International Classification:

C11D001/00
US Classification:

510499000
Abstract:

The present invention relates to cleaning compositions having a viscoelastic rheology and, in particular, to hypochlorite compositions having a viscoelastic rheology, which compositions are formulated to have optimized viscosity together with optimized elasticity. The present invention affords a range of rheologies for simultaneously achieving optimal viscosity and optimal elasticity. The inventive composition also provides, when formulated as a drain opener, the advantage of ready penetration through standing water, as well as adherence to partial clogs.

Ts-23 Alpha-Amylase Variants With Altered Properties
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US Patent:

20130344542, Dec 26, 2013
Filed:

May 21, 2013
Appl. No.:

13/899057
Inventors:

Claudine Chang - Mountain View CA, US
Clement Choy - Alamo CA, US
Brian E. Jones - Leidschendam, NL
Melodie Estabrook - Mountain View CA, US
Marc Kolkman - Oegstgeest, NL
Chris Leeflang - GA Twisk, NL
Casper Vroemen - Oegstgeest, NL
Walter Weyler - San Francisco CA, US
International Classification:

C12N 9/28
US Classification:

435 99, 435202, 435263, 510226, 510235, 510300, 510320
Abstract:

Described are variants (mutants) of a parent alpha-amylase having alpha-amylase activity and exhibiting altered properties relative to the parent alpha-amylase, and methods of use, thereof.

Liquid Compositions Containing N-Alkyl Ammonium Acetonitrile Salts
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US Patent:

60461500, Apr 4, 2000
Filed:

Apr 30, 1999
Appl. No.:

9/303009
Inventors:

Clement K. Choy - Alamo CA
James E. Deline - Livermore CA
Lafayette D. Foland - Dublin CA
Aram Garabedian - Fremont CA
Kevin A. Klotter - Livermore CA
Michael J. Petrin - Antioch CA
Martin J. Phillippi - Pleasanton CA
William L. Smith - Pleasanton CA
Assignee:

The Clorox Company - Oakland CA
International Classification:

C11D 328
C11D 3395
C11D 754
C11D 1700
US Classification:

510376
Abstract:

The invention provides liquid cleaning or bleaching compositions containing compounds having the structure of Formula I ##STR1## wherein A is a saturated ring formed by five atoms in addition to the N. sub. 1 atom, the five saturated ring atoms being four carbon atoms and a heteroatom, the substituent R. sub. 1 bound to the N. sub. 1 atom of the Formula I structure including either (a) a C. sub. 1-24 alkyl or alkoxylated alkyl where the alkoxy is C. sub. 2-4, (b) a C. sub. 4-24 cycloalkyl, (c) a C. sub. 7-24 alkaryl, (d) a repeating or nonrepeating alkoxy or alkoxylated alcohol, where the alkoxy unit is C. sub. 2-4, or (e) --CR. sub. 2 R. sub. 3 CN where R. sub. 2 and R. sub. 3 are each H, a C. sub. 1-24 alkyl, cycloalkyl, or alkaryl, or a repeating or nonrepeating alkoxyl or alkoxylated alcohol where the alkoxy unit is C. sub. 2-4, the R. sub. 2 and R. sub.