Andrei V Bordunov from 1560 Southwest Expy, San Jose, CA 95126, age 59, Phone: (408)2179348

Name / Title

Company / Classification

Phones & Addresses

Andrei Bordunov
President

Chemplace Employment Services

408 Un Ave, Campbell, CA 95008

Ion Exchange Cryptands Covalently Bound To Substrates
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US Patent:

6867295, Mar 15, 2005
Filed:

Sep 7, 2001
Appl. No.:

09/949010
Inventors:

L. Andy Woodruff - San Jose CA, US
Andrei V. Bordunov - Campbell CA, US
Christopher A. Pohl - Union City CA, US
Assignee:

Dionex Corporation - Sunnyvale CA
International Classification:

C08B037/16
US Classification:

536103, 540145, 549 10, 549347, 549348
Abstract:

One embodiment of the invention comprises an ion exchange composition formed by reacting unsaturated carbon to carbon moieties pendant from derivatized ion binding cryptands with a support substrate under free radical activation conditions to form a covalent bond therebetween. In another embodiment, a cryptand ion exchange composition is made by covalently bonding unsaturated carbon to carbon moieties pendant from a derivatized ion binding cryptands with unsaturated carbon to carbon moieties pendant from a support substrate under free radical activation conditions to form covalent bond.

Polar Silanes And Their Use On Silica Supports
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US Patent:

6949186, Sep 27, 2005
Filed:

Aug 12, 2003
Appl. No.:

10/639917
Inventors:

Xiaodong Liu - Fremont CA, US
Andrei V. Bordunov - Campbell CA, US
Assignee:

Dionex Corporation - Sunnyvale CA
International Classification:

B01D015/08
US Classification:

2101982, 2105021, 210635, 210656, 556410, 556463, 556465
Abstract:

A modified silica support having a polar phase bound to its surface and suitable for use for chromatographic separations, having the following formula: wherein, m=0-20; n=0-20; p=1-50; X is sulfonyl, carbonyl, carbamoyl, or oxycarbonyl; R=H, alkyl, substituted alkyl, aryl or substituted aryl groups; R=alkyl, substituted alkyl, aryl or substituted aryl groups; and Rand Rare alkyl, aryl, hydroxyl, or alkoxyl groups or groups including oxygen atoms cross-linked to silicon atoms. Also, a polar silane intermediate to make this support.

Polar Silanes For Binding To Substrates And Use Of The Bound Substrates
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US Patent:

7074491, Jul 11, 2006
Filed:

Nov 4, 2003
Appl. No.:

10/702109
Inventors:

Xiaodong Liu - Cupertino CA, US
Andrei V. Bordunov - Campbell CA, US
Christopher A. Pohl - Union City CA, US
Assignee:

Dionex Corporation - Sunnyvale CA
International Classification:

C07F 7/10
C07F 7/18
US Classification:

428447, 556413, 556415, 556465
Abstract:

Polyfunctional silicon compounds of one of the following formula:.

Polymer Substrate Coated With Weak Cationic-Exchange Functional Layer
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US Patent:

7147891, Dec 12, 2006
Filed:

Feb 11, 2004
Appl. No.:

10/778007
Inventors:

Andrei V. Bordunov - Campbell CA, US
Maria Rey - San Jose CA, US
Christopher A. Pohl - Union City CA, US
Assignee:

Dionex Corporation - Sunnyvale CA
International Classification:

C08J 3/24
US Classification:

427212, 210506, 521 27, 521 38
Abstract:

A method for making a weak cation-exchange (carboxylic acid) medium comprising contacting a solution of a functional organic polymer having carbon to carbon double bond unsaturation and having weak cationic exchange functional moieties or precursors thereof in a solvent with a substrate having an organic polymer surface, evaporating said solvent and breaking said double bond under conditions to cause the functional organic polymer to covalently bond to the substrate surface and to cross-link to form a cross-linked functional polymer layer covalently bound to the substrate surface. The medium produced by the method.

Ion Exchange Cryptands Covalently Bound To Substrates
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US Patent:

7166226, Jan 23, 2007
Filed:

Jan 28, 2005
Appl. No.:

11/046477
Inventors:

L. Andy Woodruff - San Jose CA, US
Andrei V. Bordunov - Campbell CA, US
Christopher A. Pohl - Union City CA, US
Assignee:

Dionex Corporation - Sunnyvale CA
International Classification:

C08B 37/16
US Classification:

210683, 210684, 536103, 540145, 549 10, 549347, 549348
Abstract:

One embodiment of the invention comprises an ion exchange composition formed by reacting unsaturated carbon to carbon moieties pendant from derivatized ion binding cryptands with a support substrate under free radical activation conditions to form a covalent bond therebetween. In another embodiment, a cryptand ion exchange composition is made by covalently bonding unsaturated carbon to carbon moieties pendant from a derivatized ion binding cryptands with unsaturated carbon to carbon moieties pendant from a support substrate under free radical activation conditions to form covalent bond.

Organosilanes And Substrate Bonded With Same
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US Patent:

7402243, Jul 22, 2008
Filed:

Sep 10, 2004
Appl. No.:

10/938172
Inventors:

Xiadong Liu - Cupertino CA, US
Christopher A. Pohl - Union City CA, US
Andrei V. Bordunov - Campbell CA, US
Nebojsa Avdalovic - Cupertino CA, US
Assignee:

Dionex Corporation - Sunnyvale CA
International Classification:

B01D 15/08
US Classification:

2101982, 2105021, 210635, 210656, 502401
Abstract:

The present invention provides novel silicon compounds, methods for making these novel silicon compounds, compositions comprising these novel silicon compounds attached to substrates, methods for attaching the novel silicon compounds to substrates and methods for using the compositions in a variety of chromatographic applications.

Methods And Devices For Analyte Detection
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US Patent:

7846676, Dec 7, 2010
Filed:

Oct 30, 2007
Appl. No.:

11/981404
Inventors:

Tom Weisan Yang - Cupertino CA, US
Arunashree Bhamidipati - Palo Alto CA, US
Andrei V. Bordunov - Campbell CA, US
James Eugene Knittle - San Jose CA, US
Roger A. O'Neill - San Carlos CA, US
Karl O. Voss - Foster City CA, US
Assignee:

Cell Biosciences, Inc. - Santa Clara CA
International Classification:

G01N 1/00
G01N 21/00
G01N 33/53
B01D 7/00
US Classification:

435 71, 422 8205, 422 8209, 422101, 436164, 436172, 204450, 204451, 204456, 204469
Abstract:

Methods for detecting one or more analytes, such as a protein, in a fluid path are provided. The methods include resolving, immobilizing and detecting one or more analytes in a fluid path, such as a capillary. Also included are devices and kits for performing such assays.

Organosilanes And Substrate Bonded With Same
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US Patent:

8182679, May 22, 2012
Filed:

Apr 28, 2008
Appl. No.:

12/111059
Inventors:

Xiaodong Liu - Cupertino CA, US
Christopher A. Pohl - Union City CA, US
Andrei V. Bordunov - Campbell CA, US
Nebojsa Avdalovic - Cupertino CA, US
Assignee:

Dionex Corporation - Sunnyvale CA
International Classification:

B01D 15/08
US Classification:

2101982, 2105021, 210635, 210656, 502201
Abstract:

The present invention, provides novel silicon compounds, methods for making these novel silicon compounds, compositions comprising these novel silicon compounds attached to substrates, methods for attaching the novel silicon compounds to substrates and methods for using the compositions in a variety of chromatographic applications.

Andrei V Bordunov