Vulcan Research LLC
3Patents
0Active
3Granted
28Portfolio score
Filing activity: Mar 13, 2003 → Mar 13, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6980638B1 | Failsafe configuration for alternative network telephony | Electricity | 76 | Expired |
| US6975713B1 | Providing multiple line functionality using alternative network telephony | Electricity | 73 | Expired |
| US6975717B1 | Selective processing of calls using alternative network telephony | Electricity | 23 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.