YT

Ying Get Tao

AT AT&T: 2 patents #7,280 of 18,772Top 40%
Overall (All Time): #2,273,228 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5668865 Echo canceler E-side speech detector Donald L. Duttweiler, Cheng Kim 1997-09-16
4468641 Adaptive filter update normalization Donald L. Duttweiler, Charles W. K. Gritton 1984-08-28