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Hwey Chang
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Marlboro Township, NJ, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method and system for providing billing capability for a service no...
Patent number
7,929,674
Issue date
Apr 19, 2011
AT&T Intellectual Property II, L.P.
Devinne H. Brown
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for providing billing capability for a service no...
Patent number
7,257,208
Issue date
Aug 14, 2007
AT&T Corp.
Devinne H. Brown
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for providing billing capability for a service no...
Patent number
6,980,632
Issue date
Dec 27, 2005
AT&T Corp.
Devinne H. Brown
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for call merge to an AIN SSP from an intelligent...
Patent number
6,771,762
Issue date
Aug 3, 2004
AT&T Corp.
Hwey Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Method and system for providing billing capability for a service no...
Publication number
20050286693
Publication date
Dec 29, 2005
Devinne H. Brown
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for AIN SSP and SCP to support differentiated tel...
Publication number
20030108179
Publication date
Jun 12, 2003
Hwey Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE