Cynthia Chu

US Patent:

7342497, Mar 11, 2008

Filed:

Aug 5, 2005

Appl. No.:

11/198439

Inventors:

Kevin Kwong-Tai Chung - Princeton NJ, US
Cynthia Ting-Wah Chu - Princeton NJ, US
Xiaoming Shi - Highland Park NJ, US
Jing Jian Li - Plainsboro NJ, US

Assignee:

Avante International Technology, Inc - Princeton Junction NJ

International Classification:

G08B 13/14

US Classification:

3405721, 3405724, 3405727, 235375, 235385

Abstract:

A system for monitoring a container comprises an RFID device interior the container and a receiving device exterior the container. The RFID device transmits messages each including unique identifying information, and the receiving device exterior the container receives and stores and/or relays messages received from the RFID device interior the container. Ones of the messages transmitted by the RFID device when the container is closed are not received by the receiving device and ones of the messages transmitted by the RFID device when the container is not closed are received and stored by the receiving device, whereby the messages stored in the receiving device provide an indication of whether the container has or has not been opened. Messages may include power level codes and be transmitted at more than one power level, and may be processed for locating and/or tracking the container.

US Patent:

7423535, Sep 9, 2008

Filed:

Aug 5, 2005

Appl. No.:

11/198747

Inventors:

Kevin Kwong-Tai Chung - Princeton NJ, US
Cynthia Ting-Wah Chu - Princeton NJ, US
Xiaoming Shi - Highland Park NJ, US
Jing Jian Li - Plainsboro NJ, US
Ming Zou - Hillsborough NJ, US

Assignee:

Avante International Technology, Inc. - Princeton Junction NJ

International Classification:

G08B 13/14

US Classification:

3405724, 3405721, 340 104

Abstract:

A method for monitoring a container having an RFID device interior comprises periodically transmitting messages including unique identifying information and receiving messages transmitted by the RFID device interior the container by a receiving device exterior the container. Some messages transmitted when the container is closed are not received by the receiving device, and some messages transmitted when the container is not closed are received. The method comprises storing and/or relaying the received messages and determining from the number of messages received from the RFID device that are stored and/or relayed whether the container has or has not been opened. The method may also comprise transmitting the messages at two or more power levels and selecting messages that are at the lowest power level that produces at least two corresponding stored and/or relayed messages for determining the location of the RFID device.

US Patent:

7839289, Nov 23, 2010

Filed:

May 17, 2007

Appl. No.:

11/749976

Inventors:

Kevin Kwong-Tai Chung - Princeton NJ, US
Cynthia Ting-Wah Chu - Princeton NJ, US
Jing Jian Li - Plainsboro NJ, US
Xiaoming Shi - Highland Park NJ, US
Ming Zou - Hillsborough NJ, US

Assignee:

Avante International Technology, Inc. - Princeton Junction NJ

International Classification:

G08B 13/14

US Classification:

3405728, 3405724, 340 104

Abstract:

An RFID system and method utilizes the power level of messages received from an RFID device for monitoring and/or locating and/or tracking the RFID device, e. g. , and typically an object associated with the RFID device. The power level of received messages may be indicated by power level information contained in the message, or by the strength of the received signal carrying the message, or by both. The RFID system and method may be employed to monitor a condition of an object, e. g. , a closable container, as to whether it is and/or has been closed or not, including being tampered with. Messages received from the RFID device, as well as an indication of a condition, may be relayed to a remote location.

US Patent:

20100164710, Jul 1, 2010

Filed:

Dec 30, 2009

Appl. No.:

12/650054

Inventors:

Kevin Kwong-Tai Chung - Princeton NJ, US
Cynthia Ting-Wah Chu - Princeton NJ, US
Jing Jian Li - Plainsboro NJ, US

International Classification:

G08B 1/08
H04Q 5/22
G01S 19/24

US Classification:

3405391, 340 101, 34235707

Abstract:

An RFID system and method utilizes an RFID device, wherein the RFID device senses a thing or condition interior to a closable container at or proximate the RFID device and transmits messages. The messages include information uniquely identifying the RFID device and information relating to the thing or condition sensed at or proximate the RFID device. Information in the received messages relating to the thing or condition sensed at or proximate the RFID device of messages are employed for determining whether the container is closed, is not closed, has been closed, or has been not closed, or any combination thereof, whereby an opening of and/or tampering with the container may be detected. Messages received from the RFID device, as well as an indication of a condition, may be relayed to a remote location.

US Patent:

48373982, Jun 6, 1989

Filed:

Jan 4, 1988

Appl. No.:

7/140359

Inventors:

Clarence D. Chang - Princeton NJ
Cynthia T. Chu - Princeton Junction NJ
Carol S. Lee - Princeton NJ

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

B01J 2928

US Classification:

502 86

Abstract:

Alumina-composited zeolite catalysts are activated by contact with an aqueous ammonium solution under ammonia gas pressure such that a pH of at least about 8 is maintained in the solution. The treated zeolite may thereafter be calcined without prior ammonium-exchange to provide the zeolite in the hydrogen form.

US Patent:

47883774, Nov 29, 1988

Filed:

Sep 21, 1987

Appl. No.:

7/098713

Inventors:

Clarence D. Chang - Princeton NJ
Cynthia T. Chu - Pennington NJ

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

C07C 124

US Classification:

585640

Abstract:

Siliceous zeolites, particularly those of the ZSM-5 type having a crystal size of less than one micron have their activity enhanced for the conversion of alcohols and ethers to olefins by steaming.

US Patent:

48762288, Oct 24, 1989

Filed:

Feb 25, 1988

Appl. No.:

7/163191

Inventors:

Clarence D. Chang - Princeton NJ
Cynthia T-W Chu - Pennington NJ
Pochen Chu - West Deptford NJ
Ralph M. Dessau - Edison NJ
William E. Garwood - Haddonfield NJ
Guenter H. Kuehl - Cherry Hill NJ
Joseph N. Miale - Lawrenceville NJ
David S. Shihabi - Pennington NJ

Assignee:

Mobil Oil Corporation - New York NY

International Classification:

B01J 2928

US Classification:

502 71

Abstract:

A method is disclosed for modifying an aluminosilicate-containing inorganic solid having a predetermined ion exchange capacity and containing an extractable silica by contacting, in the absence of added organic nitrogen or organic phosphorous compound and added activating metal oxide, the porous solid with liquid water at a pH of at least 6, at a temperature of up to 370. degree. C. for about 1 to 100 hours, and recovering a crystalline solid having an ion exchange capacity greater than the starting inorganic solid.

US Patent:

50948288, Mar 10, 1992

Filed:

Dec 31, 1990

Appl. No.:

7/636055

Inventors:

Cynthia T-W. Chu - Princeton Junction NJ

Assignee:

Mobil Oil Corporation - Fairfax VA

International Classification:

C01B 3334

US Classification:

423328

Abstract:

This invention relates to a method for preparing large pore synthetic crystalline molecular sieve composition which may contain framework +3 valence element, e. g. aluminum, and one or more of a) +4 valence element, e. g. silicon, and b) +5 valence element, e. g. phosphorous. The method utilizes cyclohexylamine as directing agent in the forming mixture. The source of +3 valence element and, optionally +4 element is an alkoxide thereof, e. g. , aluminum iso-propoxide. The resulting product may be used as a catalyst.