Switchboard Incorporated
6Patents
0Active
6Granted
30Portfolio score
Filing activity: May 6, 1996 → May 23, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5937392A | Banner advertising display system and method with frequency of advertisement control | Physics | 499 | Expired |
| US6108691A | Directory with options for access to and display of email addresses | Physics | 160 | Expired |
| US5918227A | On-line directory service with a plurality of databases and processors | Emerging Cross-Sectional Technologies | 82 | Expired |
| US6195660A | On-line directory service | Emerging Cross-Sectional Technologies | 77 | Expired |
| US6552670B2 | Location encoder | Electricity | 49 | Expired |
| US6523919B1 | Filing cabinet having vertically extensible drawers | Performing Operations; Transporting | 31 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.