Yahoo patents granted on 03 August 2010

9 US patents granted on 03 August 2010 and assigned to Yahoo

1 7,770,229 System and method for the propagation of DRM protected content
2 7,769,951 Intelligent caching of user data for real time communications
3 7,769,815 System and method for determining that an email message is spam based on a comparison with other potential spam messages
4 7,769,786 Propensity-to-click targeting and modeling
5 7,769,749 Web page categorization using graph-based term selection
6 7,769,746 Local query identification and normalization for web search
7 7,769,745 Visualizing location-based datasets using “tag maps”
8 7,769,740 Systems and methods of ranking attention
9 7,769,716 Divided backup of data warehouse