Yahoo patents granted on 25 January 2011

6 US patents granted on 25 January 2011 and assigned to Yahoo

1 7,877,687 Persistent visual media player
2 7,877,395 Systems and methods for identifying premium content items in a result set
3 7,877,389 Segmentation of search topics in query logs
4 7,877,380 System for query scheduling to maximize work sharing
5 7,877,335 System and method for learning a network of categories using prediction
6 7,877,317 Method and system for finding similar charts for financial analysis