Operator Service
2Patents
0Active
2Granted
25Portfolio score
Filing activity: Sep 22, 1998 → May 14, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6381325B1 | System and method for wireless directory assistance | Electricity | 59 | Expired |
| US6594352B1 | Method and system for automatically providing a customer billing identifier for a directory assistance extension call to a switch in a public telephone network | Electricity | 25 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.