Jeffrey Chen

US Patent:

6427688, Aug 6, 2002

Filed:

Feb 1, 2000

Appl. No.:

09/495494

Inventors:

Michael Ligotke - San Diego CA
Andrew W. Gieschen - San Diego CA
Robert F. Eisele - San Diego CA
Thomas R. Jackson - San Diego CA
Jeffrey Chen - Seattle WA
Bernard Greenspan - San Diego CA
Clyde Witham - San Diego CA
Gary Ward - San Diego CA

Assignee:

Dura Pharmaceuticals, Icn. - San Diego CA

International Classification:

A61M 1500

US Classification:

12820315, 12820312, 12820323

Abstract:

A dry powder inhaler has a dispersion chamber containing beads. A dose of dry powder is released into the chamber, or into an inlet tangentially joining into the chamber. As the patient inhales on a nosepiece or mouthpiece, air moves circularly through the dispersion chamber to drive the beads. The beads roll, bounce, and collide repeatedly with the drug particles on the chamber surfaces or on the beads. The smaller active drug particles are separated from the larger carrier particles and from each other, and a powder aerosol is created and inhaled by the patient. The beads are preferably lightweight, so that they can be rapidly accelerated and moved, even with nominal inspiration. The flow resistance of the inhaler is also reduced via the beads, allowing greater air flow and powder dispersion, without any increased effort by the patient.

US Patent:

6715486, Apr 6, 2004

Filed:

Jan 31, 2001

Appl. No.:

09/773261

Inventors:

Andrew W. Gieschen - San Diego CA
Michael Ligotke - San Diego CA
Jeffrey Chen - San Diego CA
Charles Ganem - San Diego CA
Bernard Greenspan - San Diego CA

Assignee:

Quadrant Technologies Limited - Nottingham

International Classification:

A61M 1600

US Classification:

12820315, 12820312, 604 58

Abstract:

A dry powder inhaler has a dispersion chamber containing beads. A dose of dry powder is released into the chamber, or into an inlet tangentially joining into the chamber. As the patient inhales on a nosepiece or mouthpiece, air moves circularly through the dispersion chamber to drive the beads. The beads roll, bounce, and collide repeatedly with the drug particles on the chamber surfaces or on the beads. The smaller active drug particles are separated from the larger carrier particles and from each other, and a powder aerosol is created and inhaled by the patient. The beads are preferably lightweight, so that they can be rapidly accelerated and moved, even with nominal inspiration. The flow resistance of the inhaler is also reduced via the beads, allowing greater air flow and powder dispersion, without any increased effort by the patient.

US Patent:

6971384, Dec 6, 2005

Filed:

Feb 19, 2004

Appl. No.:

10/782449

Inventors:

Andrew W. Gieschen - San Diego CA, US
Michael Ligotke - San Diego CA, US
Jeffrey Chen - San Diego CA, US
Charles Ganem - San Diego CA, US
Bernard Greenspan - San Diego CA, US

Assignee:

Quadrant Technologies Limited - Nottingham

International Classification:

A61M015/00

US Classification:

12820315, 12820312, 604 58

Abstract:

A dry powder inhaler has a dispersion chamber containing beads. A dose of dry powder is released into the chamber, or into an inlet tangentially joining into the chamber. As the patient inhales on a nosepiece or mouthpiece, air moves circularly through the dispersion chamber to drive the beads. The beads roll, bounce, and collide repeatedly with the drug particles on the chamber surfaces or on the beads. The smaller active drug particles are separated from larger carrier particles and from each other, and a powder aerosol is created and inhaled by the patient. The beads are preferably lightweight, so that they can be rapidly accelerated and moved, even with nominal inspiration. The flow resistance of the inhaler is also reduced via the beads, allowing greater airflow and powder dispersion, without any increased effort by the patient.

US Patent:

7022233, Apr 4, 2006

Filed:

Jan 9, 2004

Appl. No.:

10/755073

Inventors:

Jeffrey J. Chen - Palo Alto CA, US

Assignee:

Severn Trent Services, Water Purification Solutions, Inc. - Colmar PA

International Classification:

C02F 3/30
C02F 3/06

US Classification:

210605, 210617, 210622, 210151, 210903

Abstract:

A biologically active reactor system for the treatment of wastewater comprises one or more submerged denitrification reactors having coarse media particles and a fixed biological film comprising biologically anoxic active microorganisms. One or more submerged aerated filters are in fluid communication with the one or more submerged denitrification reactor, the submerged aerated filter comprising coarse media particles and a fixed biological film comprising biologically aerobic microorganisms for oxidation of organic matter. One or more deep bed denitrification filters for removal of suspended solids and denitrification of oxidized nitrogens are in fluid communication with the one or more submerged aerated filters, the deep bed denitrification filter comprising fine media particles of less than 6 mm. Effluent from the submerged aerated filter is recycled to the submerged denitrification reactor for pre-denitrification prior to being piped to the deep bed denitrification filter. During the method, wastewater influent along with treated effluent from the submerged aerated filter is fed to a submerged denitrification reactor.

US Patent:

7958890, Jun 14, 2011

Filed:

Dec 4, 2008

Appl. No.:

12/328657

Inventors:

Andrew W. Gieschen - San Diego CA, US
Michael Ligotke - San Diego CA, US
Jeffrey Chen - San Diego CA, US
Charles F. Ganem - San Diego CA, US
Bernard Greenspan - San Diego CA, US

Assignee:

Quadrant Technologies Limited

International Classification:

A61M 15/00
A61M 16/00

US Classification:

12820315, 12820314, 12820319, 12820322, 12820323, 12820012

Abstract:

A dry powder inhaler has a dispersion chamber containing beads. A dose of dry powder is released into the chamber, or into an inlet tangentially joining into the chamber. As the patient inhales on a nosepiece or mouthpiece, air moves circularly through the dispersion chamber to drive the beads. The beads roll, bounce, and collide repeatedly with the drug particles on the chamber surfaces or on the beads. The smaller active drug particles are separated from larger carrier particles and from each other, and a powder aerosol is created and inhaled by the patient. The beads are preferably lightweight, so that they can be rapidly accelerated and moved, even with nominal inspiration. The flow resistance of the inhaler is also reduced via the beads, allowing greater airflow and powder dispersion, without any increased effort by the patient.

US Patent:

7981694, Jul 19, 2011

Filed:

Jan 28, 2004

Appl. No.:

10/767251

Inventors:

Gerry R. Boss - La Jolla CA, US
Stephen B. Jones - San Diego CA, US
Jeffrey C. Chen - San Gabriel CA, US
Friederike von Lintig - San Diego CA, US
Stephanie Hoffman - Patatuma CA, US
Adam Kimmerly - San Diego CA, US
Joann Luu - San Jose CA, US
Matthew Christopher Mycroft - Sierra Madre CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G01N 33/543

US Classification:

436518, 436524, 436527, 436528, 436532

Abstract:

The invention is a method for the isolation of molecules of interest using tubes in which at least a portion of the inner walls of the tube are coated with microbeads that are coated with a capture reagent to bind the molecule of interest. The microbeads may be glass or polymer beads. The invention is a method and apparatus for preparation of the tubes for use in the method of the invention. The invention is a method for determining ratios of guanine nucleotides bound to guanine-nucleotide binding proteins.

US Patent:

8407596, Mar 26, 2013

Filed:

Apr 22, 2009

Appl. No.:

12/427919

Inventors:

Sandy Yu - Sunnyvale CA, US
Jeffrey Chao-Nan Chen - Mountain View CA, US
Allen Pin-Shiu Huang - Mountain View CA, US
Jason Xiaobo Zhao - San Jose CA, US
Mark Pearson - Renton WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 3/00
G06F 17/00

US Classification:

715731, 715202, 715723, 715724, 715725, 715730, 715732

Abstract:

Media timeline interaction may be provided. An electronic presentation may comprise a media object. A user may select the media object within a presentation application and use an on-object user interface in conjunction with the application's user interface to modify the media object. The user may also display the modified media object within the presentation application.

US Patent:

8578259, Nov 5, 2013

Filed:

Dec 31, 2008

Appl. No.:

12/346844

Inventors:

Jeffrey Chao-Nan Chen - Mountain View CA, US
Kai Chung Lui - Hong Kong, CN

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 17/00

US Classification:

715201, 715204, 715731, 709231, 709246, 37524001, 37524002, 37524016, 348557

Abstract:

Tools and techniques for media portability and compatibility for different destination platforms are provided. These tools may receive commands to launch a media portability capability, and may receive source media as input for transformation. These tools may also receive indications of profile settings for specifying how to transform the source media for enhanced portability on destination systems for playback. The source media may be transformed in response to the profile setting, with the transformed media inserted into a document. The tools may then distribute the document to the destination system for playback.

Address:

11427 Trailbrook Ln, San Diego, CA 92128

VIN:

5J6RE387X9L007152

Make:

HONDA

Model:

CR-V

Year:

2009