Jen L Chen

US Patent:

20090093232, Apr 9, 2009

Filed:

Oct 6, 2008

Appl. No.:

12/246388

Inventors:

Rajarshi Gupta - Santa Clara CA, US
Anand Palanigounder - San Diego CA, US
Fatih Ulupinar - San Diego CA, US
Gavin B. Horn - La Jolla CA, US
Parag A. Agashe - San Diego CA, US
Jen Mei Chen - San Diego CA, US
Manoj M. Deshpande - San Diego CA, US
Srinivasan Balasubramanian - San Diego CA, US
Sanjiv Nanda - Ramona CA, US
Osok Song - San Diego CA, US

Assignee:

Qualcomm Incorporated - San Diego CA

International Classification:

H04W 12/08
H04W 72/04

US Classification:

455410, 455450

Abstract:

Provisioning and access control for communication nodes involves assigning identifiers to sets of nodes where the identifiers may be used to control access to restricted access nodes that provide certain services only to certain defined sets of nodes. In some aspects provisioning a node may involve providing a unique identifier for sets of one or more nodes such as restricted access points and access terminals that are authorized to receive service from the restricted access points. Access control may be provided by operation of a restricted access point and/or a network node. In some aspects, provisioning a node involves providing a preferred roaming list for the node. In some aspects, a node may be provisioned with a preferred roaming list through the use of a bootstrap beacon.

US Patent:

20090094680, Apr 9, 2009

Filed:

Oct 6, 2008

Appl. No.:

12/246383

Inventors:

Rajarshi Gupta - Santa Clara CA, US
Anand Palanigounder - San Diego CA, US
Fatih Ulupinar - San Diego CA, US
Gavin B. Horn - La Jolla CA, US
Parag A. Agashe - San Diego CA, US
Jen Mei Chen - San Diego CA, US
Manoj M. Deshpande - San Diego CA, US
Srinivasan Balasubramanian - San Diego CA, US
Sanjiv Nanda - Ramona CA, US
Osok Song - San Diego CA, US

Assignee:

QUALCOMM INCORPORATED - San Diego CA

International Classification:

G06F 21/00

US Classification:

726 3

Abstract:

Provisioning and access control for communication nodes involves assigning identifiers to sets of nodes where the identifiers may be used to control access to restricted access nodes that provide certain services only to certain defined sets of nodes. In some aspects provisioning a node may involve providing a unique identifier for sets of one or more nodes such as restricted access points and access terminals that are authorized to receive service from the restricted access points. Access control may be provided by operation of a restricted access point and/or a network node. In some aspects, provisioning a node involves providing a preferred roaming list for the node. In some aspects, a node may be provisioned with a preferred roaming list through the use of a bootstrap beacon.

US Patent:

20110273280, Nov 10, 2011

Filed:

Sep 4, 2007

Appl. No.:

12/377878

Inventors:

Han Chao Chang - Tainan, TW
Jen Lin Chen - Cupertino CA, US

International Classification:

G08B 1/00

US Classification:

3403097

Abstract:

A medicament reminder device for reminding patients to ingest or administer medicaments includes an output () assembly operable to generate a reminder signal (), and to generate messages of pieces of information associated respectively with the medicaments (), and a timer () electrically coupled to the output assembly () and operable to store a plurality of reminder moments (), each of the reminder moments () being associated with at least one of the medicaments () and corresponding pieces of information, the timer () controlling the output assembly at each of the reminder moments () to generate the reminder signal, and to generate the messages with respect to the pieces of information corresponding to the at least one of the medicaments ()

US Patent:

53388674, Aug 16, 1994

Filed:

Apr 24, 1992

Appl. No.:

7/872282

Inventors:

William Choy - Sunnyvale CA
Jen Chen - Sunnyvale CA
Bijan Almassian - Belmont CA

Assignee:

Genelabs Technologies, Inc. - Redwood City CA

International Classification:

C07D30777

US Classification:

549298

Abstract:

A method of preparing a 4'-0-demethy-4. beta. -NHR podophyllotoxin, where R is an aryl or dialkyl amino alkyl group, is disclosed. The method includes reacting H. sub. 2 NR under basic conditions with a mixture of. alpha. and. beta. epimers of 4'-0-demethyl-4-bromo-podophyllotoxin, to form an epimeric mixture of the 4'-0-demethyl-4-NHR-podophyllotoxin compounds, removing acidic impurities which bind to silica gel in a dichloromethane solvent, and crystallizing 4'-0-demethyl-4. beta. -NHR-podophyllotoxin from its. alpha. epimer.

US Patent:

47234156, Feb 9, 1988

Filed:

Oct 14, 1986

Appl. No.:

6/918331

Inventors:

Jen K. Chen - Hacienda Heights CA

International Classification:

F25B 1900

US Classification:

62169

Abstract:

An air and water cooling system includes an evaporator tank partially filled with water with a vacuum pump maintaining a partial vacuum in the tank. A spray of water is directed from a header into the tank, and the partial vacuum effects an evaporation of some of the sprayed water so as to absorb heat from the main pool of water contained within the tank. This cooled water supply may then be pumped through a cooling coil positioned within a heat exchanger, and a flow of air through the heat exchanger will acquire a desired air cooling effect. The water in the cooling coil is then pumped back to the spray header positioned within the evaporator tank to complete the closed cycle. Since the vacuum pump will result in the removal of evaporated water, a float operated water makeup feed is provided to maintain a constant level of water within the evaporator tank.

US Patent:

51807181, Jan 19, 1993

Filed:

Jun 21, 1991

Appl. No.:

7/718894

Inventors:

Wilhelm Kump - Biel-Benken, CH
Christian Borel - Geneva, CH
Jen Chen - Sunnyvale CA
Siem J. Veenstra - Basel, CH
John Francis - Basking Ridge NJ
Benjamin B. Mugrage - Basking Ridge NJ

Assignee:

Ciba-Geigy Corporation - Ardsley NY

International Classification:

C07D49818
A61K 31495

US Classification:

514183

Abstract:

The invention relates to novel acyl derivatives of rifamycins of the formula ##STR1## and the salts thereof, in which the structural elements --A. sub. 1 --A. sub. 2 --, --A. sub. 3 --A. sub. 4 -- and --A. sub. 5 --A. sub. 6 -- each denote ethylene or vinylene or the elements --A. sub. 1 --A. sub. 2 -- and --A. sub. 3 --A. sub. 4 -- each denote ethylene and --A. sub. 5 --A. sub. 6 -- denotes vinylene; X represents >C(R. sub. 6)-- or >N-- and R. sub. 6 denotes hydrogen or alkyl; alk denotes an aliphatic hydrocarbon radical; R. sub. 1 denotes hydrogen or acyl; R. sub. 2 denotes acyl, or alkyl which is optionally substituted by an aromatic radical, and R. sub. 3 and R. sub. 3 ' represent a common bond, or R. sub. 3 denotes hydrogen or acyl, and R. sub. 3 ' is hydrogen; R. sub.