Robert A Christensen

US Patent:

D696526, Dec 31, 2013

Filed:

Nov 2, 2012

Appl. No.:

29/436304

Inventors:

Robert Christensen - Foster City CA, US

International Classification:

0604

US Classification:

D 6470

US Patent:

20010056177, Dec 27, 2001

Filed:

Jun 20, 2001

Appl. No.:

09/886244

Inventors:

Nathaniel Becker - Burlingame CA, US
Thomas Green - Montara CA, US
Robert Christensen - Pinole CA, US

International Classification:

A61K038/00
C07K001/00
C07K017/00

US Classification:

530/300000, 530/333000, 530/350000

Abstract:

Granules that include a protein core are described. The protein core includes a protein matrix which includes a protein mixed together with a combination of a sugar or sugar alcohol and a structuring agent such as a polysaccharide or a polypeptide. The protein matrix can be layered over a seed particle or the protein granule can be homogeneous. The protein can be an enzyme or a therapeutic protein such as a hormone. Also described are methods for making the granules.

US Patent:

20020001835, Jan 3, 2002

Filed:

Dec 18, 1998

Appl. No.:

09/215086

Inventors:

NATHANIEL T. BECKER - BURLINGAME CA, US
ROBERT I. CHRISTENSEN - PINOLE CA, US
ERNST H. GROS - KANTVIK, FI

International Classification:

C12N009/98

US Classification:

435/187000

Abstract:

Granules that include a protein core are described. The protein core includes a protein matrix which includes a protein mixed together with a salt. The protein matrix is layered over a seed particle. The protein can be an enzyme or a therapeutic protein such as a hormone. Methods of making the granules are also described.

US Patent:

20020082183, Jun 27, 2002

Filed:

Jan 7, 2000

Appl. No.:

09/479693

Inventors:

ROBERT CHRISTENSEN - PINOLE CA, US

International Classification:

C11D017/00
C11D003/00

US Classification:

510/392000, 510/445000, 510/446000

Abstract:

The present invention provides low-density compositions, as well as particulates formed, at least in part, from such compositions. Preferred low-density materials include, for example, hollowspheres, low-density minerals, and low-density wood materials (e.g., sawdust). The low-density compositions of the invention can be formed as particulates, or cores, suitable for use in forming enzyme granules, e.g., marums, layered granules, prills, drum granules, agglomerated granules, or the like. Granules are disclosed having advantageous properties, e.g., low dusting, storage stable, fast enzyme-release profile, low true density, etc. The granules of the invention are especially useful, for example, in liquid detergents and cleaners, such as predominantly aqueous, liquid laundry detergents. In one embodiment, granules are provided having a true, or volumetric, density within a range of from about 0.95 to about 1.4 g/cm. The granules can be economically produced in commercial quantities by way of a marumerization, drum granulation, fluid-bed spray-coating, pan-coating, or other suitable process.

US Patent:

20020193275, Dec 19, 2002

Filed:

Jul 1, 2002

Appl. No.:

10/187781

Inventors:

Robert Christensen - Pinole CA, US

International Classification:

C11D003/386
C11D017/00

US Classification:

510/445000, 510/392000, 510/530000

Abstract:

The present invention provides low-density compositions, as well as particulates formed, at least in part, from such compositions. Preferred low-density materials include, for example, hollowspheres, low-density minerals, and low-density wood materials (e.g., sawdust). The low-density compositions of the invention can be formed as particulates, or cores, suitable for use in forming enzyme granules, e.g., marums, layered granules, prills, drum granules, agglomerated granules, or the like. Granules are disclosed having advantageous properties, e.g., low dusting, storage stable, fast enzyme-release profile, low true density, etc. The granules of the invention are especially useful, for example, in liquid detergents and cleaners, such as predominantly aqueous, liquid laundry detergents. In one embodiment, granules are provided having a true, or volumetric, density within a range of from about 0.95 to about 1.4 g/cm. The granules can be economically produced in commercial quantities by way of a marumerization, drum granulation, fluid-bed spray-coating, pan-coating, or other suitable process.

US Patent:

20040029756, Feb 12, 2004

Filed:

Jul 30, 2003

Appl. No.:

10/630217

Inventors:

Nathaniel Becker - Burlingame CA, US
Robert Christensen - Pinole CA, US
Alfred Gaertner - San Bruno CA, US
Mahmood Ghani - Milpitas CA, US
Douglas Dale - Pacifica CA, US

International Classification:

C12N009/00
C11D003/386

US Classification:

510/226000, 510/320000, 435/183000

Abstract:

A granule having high stability and low dust is described. The granule includes a hydrated barrier material having moderate or high water activity. Also described are methods of producing the granules.

US Patent:

20080206830, Aug 28, 2008

Filed:

May 1, 2008

Appl. No.:

12/113422

Inventors:

Nathaniel T. Becker - Burlingame CA, US
Robert I. Christensen - Pinole CA, US
Alfred L. Gaertner - San Bruno CA, US
Mahmood M. Ghani - Milpitas CA, US
Douglas A. Dale - Pacifica CA, US

International Classification:

C12N 9/00

US Classification:

435174

Abstract:

A granule having high stability and low dust is described. The granule includes a hydrated barrier material having moderate or high water activity. Also described are methods of producing the granules.

US Patent:

20110189344, Aug 4, 2011

Filed:

Jun 9, 2009

Appl. No.:

13/062480

Inventors:

Michael Bodo - Cupertino CA, US
Robert I. Christensen - Pinole CA, US
Rajdeep S. Dhaliwal - Richmond, CA
Meng H. Heng - Belmont CA, US

International Classification:

A23L 1/30
C12N 9/00
C12N 9/98
D06M 16/00
C11D 3/386
A23K 1/165

US Classification:

426 61, 435183, 435187, 252 881, 510108

Abstract:

Methods are provided for recovery and formulation of insoluble enzymes from a microbial fermentation broth, without removal of microbial cells or cell debris. Granular and liquid formulations comprising insoluble enzymes are also provided.