Christopher Charles Barnett

US Patent:

6455288, Sep 24, 2002

Filed:

Apr 8, 1993

Appl. No.:

08/044857

Inventors:

Edward Benjamin Jakobovits - Menlo Park CA
Joy L. Silen - Belmont CA
Mark J. Levy - San Jose CA
Thomas C. Goodman - Mountain View CA
Martin Becker - Palo Alto CA
Edwin F. Ullman - Atherton CA
Robert M. Caldwell - San Carlos CA
Richard R. Bott - Burlingame CA
Christopher Charles Barnett - South San Francisco CA

Assignee:

Dade Behring Marburg GmbH - Marburg
Genencor International, Inc. - San Francisco CA

International Classification:

C12N 1552

US Classification:

435190, 4352523, 4353201, 536 232

Abstract:

The present invention relates to methods for immunoassay of analytes employing mutant glucose-6-phosphate dehydrogenase (G6PDH) enzymes as labels. In particular, the invention relates-to the use of conjugates of an analyte or analyte analog and a mutant NAD dependent G6PDH differing from any precursor G6PDH by the deletion, substitution, or insertion, or any combination thereof of at least one amino acid per subunit. The invention also involves the construction of several mutations in precursor glucose-6-phosphate dehydrogenase (G6PDH) enzymes. Typically, the mutations involve deletion or substitution of one or more lysine residues, or introduction of one or more cysteine residues by insertion of cysteine to precursor G6PDH or substitution of precursor G6PDH amino acids residues with cysteine. The present invention also relates to conjugates of the subject enzymes and specific binding pair members, kits useful in performing the methods of the invention, cell lines producing the subject enzymes, DNA sequences encoding the subject enzymes, and vectors containing DNA encoding the subject enzymes and designed to allow a host cell to produce the subject enzymes.

US Patent:

8597927, Dec 3, 2013

Filed:

Dec 16, 2008

Appl. No.:

12/810004

Inventors:

Christopher C. Barnett - Granite Bay CA, US
Manoj Kumar - Fremont CA, US
Gregory M. Whited - Belmont CA, US

Assignee:

Danisco US Inc. - Palo Alto CA

International Classification:

C12N 9/14
C12N 9/16
C12N 9/18
C12N 9/26
C12N 9/44
C12N 9/48
C12N 9/54
C12N 9/58
C11D 7/42

US Classification:

435195, 435212, 435221, 435223, 435201, 435210, 435196, 435197, 510374, 510218, 510392

Abstract:

The invention provides methods, compositions, and kits for removal of biofilms from surfaces. The methods described herein comprise simultaneous or sequential application of a perhydrolase enzyme and a mixture of other enzymes, such as proteases, glucanases, esterases, mannanases, phospholipases, cellulases, and/or amylases, to a biofilm on a surface, to effect removal of the biofilm.

US Patent:

20100138337, Jun 3, 2010

Filed:

Dec 1, 2008

Appl. No.:

12/325403

Inventors:

Christopher R. Barnett - San Francisco CA, US
Elwin Kongeang Sam - Tustin CA, US
Geethika Uriti - Fremont CA, US

Assignee:

FOX DIGITAL ENTERPRISES, INC. - Los Angeles CA

International Classification:

G06Q 40/00

US Classification:

705 39

Abstract:

In one example, a media purchase system is provided. The media purchase system includes: a media manager module that selectively coordinates a media file with an operating scenario in a video game; a selection manager module that manages a selection of the media file for purchase in the video game; and a media purchase module that manages a purchase of the selection in the video game.

US Patent:

20100189707, Jul 29, 2010

Filed:

May 5, 2008

Appl. No.:

12/593386

Inventors:

Christopher C. Barnett - Penfield NY, US

International Classification:

A61K 38/46
C12N 9/14
C12N 9/02
C12N 9/04
C12N 9/42
C12N 9/26
C12N 9/50

US Classification:

424 946, 435195, 435189, 435190, 435209, 435201, 435219

Abstract:

The present invention provides stable compositions comprising a perhydrolase enzyme, a hydrogen peroxide source, and an ester substrate that efficiently generate aqueous peracid solutions. The generated peracid solutions are suitable for decontaminating and/or sanitizing a wide range of materials and equipment contaminated with pathogens or toxic chemicals. In one preferred embodiment, the stable composition comprises an acyl transferase enzyme, sodium percarbonate, and propylene glycol diacetate, and is stable for 30 days or longer. Upon addition to water, the composition is activated and generates an aqueous solution with a high ratio of peracetic acid to acetic acid.

US Patent:

20120024783, Feb 2, 2012

Filed:

Mar 2, 2010

Appl. No.:

13/254100

Inventors:

Christopher C. Barnett - Granite Bay CA, US
Rafael F. Sala - Mountain View CA, US

Assignee:

Danisco US Inc. - Palo Alto CA

International Classification:

C02F 1/72
C02F 1/68
C12N 9/18

US Classification:

210632, 435197

Abstract:

Described are compositions and methods for the decolorization of dye molecules in an aqueous medium using enzymatically-generated peracid.

US Patent:

20120088291, Apr 12, 2012

Filed:

May 27, 2010

Appl. No.:

13/321840

Inventors:

Lode Vermeersch - Mullheim, DE
Erwin Redling - Maulburg, DE
Wayne Ashton - South Yorkshire, GB
Christopher C. Barnett - Granite Bay CA, US
Andreas Jacobus Johanna krouwer - Poeldijk, NL
Piera Pericu - Voorschoten, NL
Rafael F. Sala - Mountain View CA, US

Assignee:

Huntsman International LLC - The Woodlands TX

International Classification:

D06M 16/00

US Classification:

435263

Abstract:

A method for adjusting the colour tone of dyed cellulosic textile fibre material comprising contacting said textile material with an enzymatic textile treatment composition comprising

US Patent:

20120149269, Jun 14, 2012

Filed:

Aug 26, 2010

Appl. No.:

13/254116

Inventors:

Rafael F. Sala - Mountain View CA, US
Wayne Ashton - Bamsley, GB
Piera M. Pericu - Voorschoten, NL
Christopher C. Barnett - Granite Bay CA, US

Assignee:

Danisco US Inc. - Palo Alto CA

International Classification:

D03D 15/00
B32B 5/16
D06L 3/16
C12S 11/00
D06L 3/14

US Classification:

442181, 435263, 811551, 8194, 428221

Abstract:

Described are compositions and methods for the enzymatic abrading and color modification of dyed textiles. The compositions and methods permit a textile manufacturer to obtain a wide variety of different textile finishes and colors using exclusively enzymatic methods.

US Patent:

61034649, Aug 15, 2000

Filed:

Jun 5, 1995

Appl. No.:

8/463461

Inventors:

Timothy Fowler - Belmont CA
Christopher C. Barnett - South San Francisco CA
Sharon Shoemaker - Fairfield CA

Assignee:

Genencor International, Inc. - Rochester NY

International Classification:

C12Q 168
C07H 2104

US Classification:

435 6

Abstract:

A process for expressing extracellular. beta. -glucosidase in a filamentous fungus by expressing a fungal DNA sequence encoding enhanced, deleted or altered. beta. -glucosidase in a recombinant host microorganism is disclosed. Recombinant fungal cellulase compositions containing enhanced, deleted or altered expression of. beta. -glucosidase is also disclosed.