CK

Cheuk W. Kwok

AT AT&T: 1 patents #10,626 of 18,772Top 60%
Overall (All Time): #3,872,981 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5003577 Voice and data interface to a voice-mail service system Douglas J. Ertz, Larry Friedman, William Katamura, David J. Marinelli 1991-03-26