HC

Hwey Chang

AT AT&T: 4 patents #4,399 of 18,772Top 25%
Overall (All Time): #1,237,954 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7929674 Method and system for providing billing capability for a service node in an advanced intelligent network environment Devinne H. Brown, Romel Khan, Michael Koptiw, Antoinette Rule, Tejanand Sarju 2011-04-19
7257208 Method and system for providing billing capability for a service node in an advanced intelligent network environment Devinne H. Brown, Romel Khan, Michael Koptiw, Antoinette Rule, Tejanand Sarju 2007-08-14
6980632 Method and system for providing billing capability for a service node in an advanced intelligent network environment Devinne H. Brown, Romel Khan, Michael Koptiw, Antoinette Rule, Tejanand Sarju 2005-12-27
6771762 System and method for call merge to an AIN SSP from an intelligent peripheral Pamela Lilly DeFazio, Romel Khan, Maura Elizabeth Marcus, Gary Munson, Gautham Natarajan 2004-08-03