Cloudmark, Inc.
10Patents
6Active
10Granted
40Portfolio score
Filing activity: Sep 15, 2003 → Oct 7, 2014 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7373385B2 | Method and apparatus to block spam based on spam reports from a community of users | Electricity | 63 | Expired |
| US7519565B2 | Methods and apparatuses for classifying electronic documents | Emerging Cross-Sectional Technologies | 41 | Expired |
| US9560074B2 | Systems and methods of identifying suspicious hostnames | Electricity | 6 | Active |
| US7890441B2 | Methods and apparatuses for classifying electronic documents | Emerging Cross-Sectional Technologies | 5 | Active |
| US9294490B1 | Apparatus and method for identifying a domain name system resource exhaustion attack | Electricity | 2 | Active |
| US7539729B1 | Method and apparatus to enable mass message publications to reach a client equipped with a filter | Electricity | 1 | Expired |
| US8301702B2 | Method and an apparatus to screen electronic communications | Electricity | 0 | Active |
| US7953801B2 | Method and an apparatus to screen electronic communications | General | 0 | Revoked |
| US9634970B2 | Apparatus and method for augmenting a message to facilitate spam identification | Electricity | 0 | Active |
| US8171091B1 | Systems and methods for filtering contents of a publication | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.