Hwey Chang

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Marlboro Township, NJ, US

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Patents Grantslast 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 Applicationslast 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