Andrew K Chen

US Patent:

6870233, Mar 22, 2005

Filed:

Aug 14, 2003

Appl. No.:

10/642077

Inventors:

Bomy Chen - Cupertino CA, US
Kai Man Yue - Yuen Long N.T., HK
Andrew Chen - Bedminster NJ, US

Assignee:

Silicon Storage Technology, Inc. - Sunnyvale CA

International Classification:

H01L029/76
H01L021/8236
G11C017/00

US Classification:

257390, 257391, 257408, 257344, 257345, 438276, 438278, 365104, 365182

Abstract:

A multi-bit Read Only Memory (ROM) cell has a semiconductor substrate of a first conductivity type with a first concentration. A first and second regions of a second conductivity type spaced apart from one another are in the substrate. A channel is between the first and second regions. The channel has three portions, a first portion, a second portion and a third portion. A gate is spaced apart and is insulated from at least the second portion of the channel. The ROM cell has one of a plurality of N possible states, where N is greater than 2. The possible states of the ROM cell are determined by the existence or absence of extensions or halos that are formed in the first portion of the channel and adjacent to the first region and/or in the third portion of the channel adjacent to the second region. These extensions and halos are formed at the same time that extensions or halos are formed in MOS transistors in other parts of the integrated circuit device, thereby reducing cost.

US Patent:

7229630, Jun 12, 2007

Filed:

Jun 20, 2003

Appl. No.:

10/465810

Inventors:

Andrew X. Chen - San Diego CA, US
Julius Knowles - Del Mar CA, US
Eckard Weber - San Diego CA, US

Assignee:

Novalar Pharmaceuticals, Inc. - DE

International Classification:

A61K 9/08
A61K 47/12
A61K 47/18

US Classification:

424400, 424423, 514784, 514788

Abstract:

The present invention provides compositions and stable liquid formulations comprising alpha adrenergic receptor antagonists and use thereof for increasing blood flow. In one embodiment, the stable liquid formulations of this invention are useful for reversing the effects of an anesthetic agent, preferably a long-lasting local anesthetic agent administered in conjunction with an alpha adrenergic receptor agonist.

US Patent:

7569230, Aug 4, 2009

Filed:

Dec 15, 2006

Appl. No.:

11/611504

Inventors:

Andrew X Chen - San Diego CA, US
Julius Knowles - Del Mar CA, US
Eckard Weber - San Diego CA, US

Assignee:

Novalar Pharmaceuticals, Inc. - San Diego CA

International Classification:

A61K 9/08
A61K 31/417
A61K 31/497
A61K 47/12
A61K 47/16
A61K 47/26

US Classification:

424400, 51425216, 514401, 514818

Abstract:

The present invention provides compositions and stable liquid formulations comprising alpha adrenergic receptor antagonists and use thereof for increasing blood flow. In one embodiment, the stable liquid formulations of this invention are useful for reversing the effects of an anesthetic agent, preferably a long-lasting local anesthetic agent administered in conjunction with an alpha adrenergic receptor agonist.

US Patent:

7575757, Aug 18, 2009

Filed:

Mar 18, 2005

Appl. No.:

11/082968

Inventors:

Andrew X. Chen - San Diego CA, US
Julius Knowles - Del Mar CA, US
Eckard Weber - San Diego CA, US

Assignee:

Novalar Pharmaceuticals, Inc. - San Diego CA

International Classification:

A61K 9/08
A61K 31/417
A61K 31/497
A61K 47/12
A61K 47/16
A61K 47/26

US Classification:

424400, 51425216, 514401, 514818

Abstract:

The present invention provides compositions and stable liquid formulations comprising alpha adrenergic receptor antagonists and use thereof for increasing blood flow. In one embodiment, the stable liquid formulations of this invention are useful for reversing the effects of an anesthetic agent, preferably a long-lasting local anesthetic agent administered in conjunction with an alpha adrenergic receptor agonist.

US Patent:

7805366, Sep 28, 2010

Filed:

Mar 19, 2004

Appl. No.:

10/805414

Inventors:

Andrew Dali Chen - Santa Clara CA, US
Brian Andrew Phillips - San Francisco CA, US
Chad Meredith Hurley - Palo Alto CA, US
Dantley Davis - San Jose CA, US
Paul Arthur Martin - Menlo Park CA, US
Yu Pan - Mountain View CA, US

Assignee:

eBay Inc. - San Jose CA

International Classification:

G06Q 40/00

US Classification:

705 40, 705 39, 705 42

Abstract:

A payment system includes a transaction identification system to identify a plurality of purchase transactions, established utilizing one or more transaction systems that impose a plurality of corresponding payment obligations on a particular user. An interface generator generates an aggregation interface that presents the plurality of purchase transactions to the first user. The plurality of purchase transactions are presented in conjunction with a payment option to initiate an automatic payment process with respect to at least a subset of the purchase transactions. A payment engine initiates the automatic payment process with respect to the first subset of plurality of purchase transactions upon election by the first user of the payment option.

US Patent:

7871632, Jan 18, 2011

Filed:

Jul 12, 2004

Appl. No.:

10/889226

Inventors:

Andrew Xian Chen - San Diego CA, US

Assignee:

Adventrx Pharmaceuticals, Inc. - San Diego CA

International Classification:

A61K 9/00

US Classification:

424400

Abstract:

The present invention provides compositions for delivering highly water-soluble drugs (such as vinca alkaloids) and methods of using such compositions.

US Patent:

7944251, May 17, 2011

Filed:

Mar 9, 2009

Appl. No.:

12/381227

Inventors:

Andrew Chen - Redondo Beach CA, US
Joseph Aziz - Irvine CA, US
Derek Tam - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H03B 1/00

US Classification:

327108, 327109, 327512

Abstract:

According to one exemplary embodiment, a transmitter module includes a line drive including a current digital-to-analog converter, where the line driver provides an analog output waveform. The current digital-to-analog converter receives a digitally filtered input waveform including at least two voltage steps. The at least two voltage steps of the digitally filtered input waveform cause a rise time of the analog output waveform to have a reduced dependency on process, voltage, and temperature variations in the line driver, while meeting stringent rise time requirements. The digitally filtered input waveform has an initial voltage level and a final voltage level, where the final voltage level is substantially equal to a sum of the at least two voltage steps of the digitally filtered input waveform.

US Patent:

7968122, Jun 28, 2011

Filed:

Dec 3, 2004

Appl. No.:

11/003302

Inventors:

Andrew Xian Chen - San Diego CA, US

Assignee:

Adventrx Pharmaceuticals, Inc. - San Diego CA

International Classification:

A61K 9/14

US Classification:

424484

Abstract:

The present invention provides antiviral compositions that comprise one or more of an ionic multivalent metal component, a cationic polymer, and a cationic surfactant. The present invention also provides methods for making and using such antiviral compositions.