Call Manage, Ltd.
6Patents
0Active
6Granted
29Portfolio score
Filing activity: Jul 21, 1995 → Dec 18, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5799072A | Telecommunications call management system | Electricity | 236 | Expired |
| US5862203A | Telecommunications call management system | Electricity | 166 | Expired |
| US6078652A | Least cost routing system | Electricity | 83 | Expired |
| US5764741A | Least cost rooting system | Electricity | 82 | Expired |
| US5878118A | Computerized telephone apparatus | Electricity | 10 | Expired |
| US5991384A | Apparatus for facilitating the making of a calling card telephone call | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.