Z-Tel Technologies, Inc.
2Patents
0Active
2Granted
21Portfolio score
Filing activity: Jul 24, 2000 → Sep 20, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6587555B1 | Virtual PBX | Electricity | 37 | Expired |
| US6453036B1 | Dynamic updating of SCP through ISUP messages | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.