Inventor
DOUSKALIS WILLIAM
US6 patents
⚠️ This page may combine multiple inventors who share the name “DOUSKALIS WILLIAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPRINT COMMUNICATIONS CO
3 patentsUS6731738B1May 4, 2004
Call tones in communication networks
SPRINT COMMUNICATIONS CO8 citations68
US6640318B1Oct 28, 2003
Continuity testing in communication networks
SPRINT COMMUNICATIONS CO3 citations59
US6728362B1Apr 27, 2004
Continuity testing with call tone messaging in communication networks
SPRINT COMMUNICATIONS CO0 citations47