Yahoo patents granted on 06 November 2012

4 US patents granted on 06 November 2012 and assigned to Yahoo

1 8,307,392 Systems and methods for inserting ads during playback of video media
2 8,307,029 System and method for conditional delivery of messages
3 8,306,966 Optimized search result columns on search results pages
4 8,306,965 System and method for generating expertise based search results