Wei X Xu

US Patent:

8344053, Jan 1, 2013

Filed:

Sep 9, 2010

Appl. No.:

12/878515

Inventors:

Wei Xu - Greenbelt MD, US
Jun Xu - Greenbelt MD, US
Gregory D. Cooper - Arlington VA, US

Assignee:

Pixelligent Technologies, LLC - Baltimore MD

International Classification:

C08K 3/10
H01R 43/00

US Classification:

524403, 29825

Abstract:

Domain segregation of polymer blends or block copolymers in the presence of thermal conducting high aspect ratio nanocrystals leads to preferential placement of conductive filler either inside one domain, which promote the self-assembly of a thermal and/or electrical conducting pathway composed of high aspect ratio filler. The self-assembly of such thermal and/or electrical conducting pathway effectively enhances the thermal and/or electrical conductivity of the composite with significantly less amount of filler.

US Patent:

8592511, Nov 26, 2013

Filed:

Apr 25, 2011

Appl. No.:

13/064905

Inventors:

Zehra Serpil Gonen Williams - Lanham MD, US
Yijun Wang - Greenbelt MD, US
Robert J. Wiacek - Silver Spring MD, US
Xia Bai - Olney MD, US
Linfeng Gou - Greenbelt MD, US
Selina I. Thomas - Hyattsville MD, US
Wei Xu - Greenbelt MD, US
Jun Xu - Frederick MD, US
Rakesh Patel - Lawrenceville NJ, US

Assignee:

Pixelligent Technologies, LLC - Baltimore MD

International Classification:

C08K 3/18
A61K 47/32

US Classification:

524432, 5147724

Abstract:

Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.

US Patent:

20020032766, Mar 14, 2002

Filed:

Aug 16, 2001

Appl. No.:

09/930272

Inventors:

Wei Xu - North Bethesda MD, US

International Classification:

G06F015/173
G06F015/16

US Classification:

709/223000, 709/201000

Abstract:

Embodiments of the present invention relate to methods and systems of delivering a network service. In an embodiment, a data packet including a service address and a payload is received. A plurality of network applications associated with the service address of the data packet are identified. The plurality of network applications associated with the service address include a first network application, a second network application, and a third network application. At least the payload of the data packet is sent to the first network application and the second network application. A second network application response packet is received from the second network application. A third network application packet is sent to the third network application, and the third network application packet is based at least in part on the second network application response packet.

US Patent:

20020032797, Mar 14, 2002

Filed:

Aug 16, 2001

Appl. No.:

09/930142

Inventors:

Wei Xu - North Bethesda MD, US

International Classification:

G06F015/173
G06F015/16

US Classification:

709/238000, 709/245000

Abstract:

Embodiments of the present invention relate to methods and systems for service addressing. In an embodiment, a data packet including a data packet service address is received. A service definition database is accessed. The service definition database includes a plurality of service definition records. Each of at least a subset of the plurality of service definition records include a service address field to store a service address and a plurality of network application entries. Each of at least a subset of the plurality of network application entries correspond to a network application. A service definition record having a service address corresponding to the data packet service address is identified. The identified service definition record includes a plurality of identified network application entries. The plurality of identified network application entries include a first identified network application entry corresponding to a first network application and a second identified network application entry corresponding to a second network application, where the first network application is different from the second network application.

US Patent:

20020032798, Mar 14, 2002

Filed:

Aug 16, 2001

Appl. No.:

09/930471

Inventors:

Wei Xu - North Bethesda MD, US

International Classification:

G06F015/173

US Classification:

709/238000, 713/201000, 709/246000, 709/249000

Abstract:

Embodiments of the present invention relate to methods and systems of managing delivery of a network service. In an embodiment, a data packet including a service address and a payload is received. A plurality of network applications associated with the service address of the data packet are identified. The plurality of network applications associated with the service address include a first network application and a second network application, where the first network application is different than the network application. At least the payload of the data packet is sent to the first network application, and a first network application response packet is received from the first network application. A second network application packet is sent to the second network application, and the second network application packet is based at least in part on the first network application response packet.

US Patent:

20020035639, Mar 21, 2002

Filed:

Aug 16, 2001

Appl. No.:

09/930141

Inventors:

Wei Xu - North Bethesda MD, US

International Classification:

G06F015/173
G06F015/16

US Classification:

709/238000, 709/230000

Abstract:

Embodiments of the present invention relate to methods and systems for directing data packets to network applications. In an embodiment, a first data packet is received via a first network interface and contains a first data packet service address. A first network application of a plurality of network applications is identified based at least in part on the first network interface and the first data packet service address. The plurality of network applications include a second network application, where the first network application is different from the second network application. At least a portion of the first data packet is sent to the first network application.

US Patent:

20020038339, Mar 28, 2002

Filed:

Aug 16, 2001

Appl. No.:

09/930164

Inventors:

Wei Xu - North Bethesda MD, US

International Classification:

G06F015/16

US Classification:

709/203000, 713/201000, 709/246000

Abstract:

Embodiments of the present invention relate to methods and systems of managing delivery of data to network applications. In an embodiment, a delivery packet including a service address and a payload is received. A plurality of network applications associated with the service address of the data packet are identified. The plurality of network applications associated with the service address include a first network application and a second network application, where the first network application is different from the second network application. At least the payload of the data packet is sent to the first network application and the second network application.

US Patent:

20130207053, Aug 15, 2013

Filed:

Oct 26, 2012

Appl. No.:

13/661740

Inventors:

Zehra Serpil Gonen Williams - Lanham MD, US
Yijun Wang - Greenbelt MD, US
Robert J. Wiacek - Silver Spring MD, US
Xia Bai - Olney MD, US
Linfeng Gou - Greenbelt MD, US
Selina I. Thomas - Hyattsville MD, US
Wei Xu - Greenbelt MD, US
Jun Xu - Gaithersburg MD, US

International Classification:

C30B 7/14

US Classification:

2525193, 117 68, 117 71, 427240, 4274274, 4274301, 427256, 42742801, 4272556

Abstract:

Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.