Inventor
HUA NINGMING
US8 patents
⚠️ This page may combine multiple inventors who share the name “HUA NINGMING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AT & T CORP
5 patentsUS7006436B1Feb 28, 2006
Method for providing voice-over-IP service
AT & T CORP54 citations95
US7200139B1Apr 3, 2007
Method for providing VoIP services for wireless terminals
AT & T CORP52 citations94
US7203166B1Apr 10, 2007
Method for providing voice-over-IP service
AT & T CORP12 citations92
US7406043B1Jul 29, 2008
Method for providing voice-over-IP service
AT & T CORP11 citations83
US7664103B2Feb 16, 2010
Method for providing VoIP services for wireless terminals
AT & T CORP10 citations82