HQ

Han QIAN

ED Empire Technology Development: 2 patents #194 of 547Top 40%
Overall (All Time): #2,011,573 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9407680 Quality-of-experience measurement for voice services Junwei Cao, Junwei Li 2016-08-02
9185005 Quality-of-experience measurement for voice services Junwei Cao, Junwei Li 2015-11-10