Unspam, LLC
5Patents
4Active
5Granted
41Portfolio score
Filing activity: Sep 24, 2003 → Dec 2, 2014 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7461263B2 | Method and apparatus for a non-revealing do-not-contact list system | Electricity | 28 | Expired |
| US7941842B2 | Method and apparatus for a non-revealing do-not-contact list system | Electricity | 19 | Active |
| US7925704B2 | Method and system for a reliable distributed category-specific do-not-contact list | Physics | 2 | Active |
| US9699125B2 | Method and apparatus for a non-revealing do-not-contact list system | Electricity | 0 | Active |
| US8904490B2 | Method and apparatus for a non-revealing do-not-contact list system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.