Inventor

CHONG KOAN S

US10 patents

⚠️ This page may combine multiple inventors who share the name “CHONG KOAN S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AT & T CORP

4 patents

US7366782B2Apr 29, 2008

Systems and methods for termination of session initiation protocol

AT & T CORP65 citations95

US6377674B1Apr 23, 2002

Method for global title translation processing

AT & T CORP58 citations95

US6205557B1Mar 20, 2001

Redundant call processing

AT & T CORP40 citations88

US7657015B1Feb 2, 2010

Method and apparatus for processing multiple services per call

AT & T CORP12 citations83

CHONG KOAN S

2 patents

US8239554B2Aug 7, 2012

Systems and methods for termination of session initiation protocol

CHONG KOAN S5 citations69

US8700786B2Apr 15, 2014

Systems and methods for termination of session initiation protocol

CHONG KOAN S1 citations58

BROWN JOHN C

2 patents

US8121274B2Feb 21, 2012

Method and apparatus for processing multiple services per call

BROWN JOHN C3 citations59

US8787360B2Jul 22, 2014

Method and apparatus for processing multiple services per call

BROWN JOHN C0 citations49

AT & T IP I LP

1 patent

US9973545B2May 15, 2018

Method and device for managing circuit switched data calls

AT & T IP I LP0 citations40

AT & T IP II LP

1 patent

US7920542B1Apr 5, 2011

Method and apparatus for providing secure voice/multimedia communications over internet protocol

AT & T IP II LP0 citations30