Yahoo patents granted on 22 May 2012

6 US patents granted on 22 May 2012 and assigned to Yahoo

1 8,185,538 System for determining the geographic range of local intent in a search query
2 8,185,528 Assigning human-understandable labels to web pages
3 8,185,524 Method and system for locating events in-context
4 8,185,438 System for separating mobile search traffic from web search traffic using keyword separation
5 8,185,425 Dates locator
6 8,184,783 User interface for integrating diverse methods of communication