5 US patents granted on 12 May 2009 and assigned to Yahoo
| 1 | D592,221 | Graphical user interface for computer screen |
| 2 | 7,533,414 | Detecting system abuse |
| 3 | 7,533,130 | User behavior reporting based on pre-aggregated activity data |
| 4 | 7,533,119 | Associating documents with classifications and ranking documents based on classification weights |
| 5 | 7,533,092 | Link-based spam detection |
