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Inventor
HOANG BACH NGOC
US
2 patents
⚠️ This page may combine multiple inventors who share the name “HOANG BACH NGOC”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AT & T IP I LP
1 patent
US7873029B2
Jan 18, 2011
System and method of providing multimedia communication services
AT & T IP I LP
7 citations
80
CHANG HISAO M
1 patent
US8634410B2
Jan 21, 2014
System and method of providing multimedia communication services
CHANG HISAO M
0 citations
48