Yahoo patent applications published on 22 November 2012

5 US patent applications published on 22 November 2012 and assigned to Yahoo

1 20120296927 SYSTEM AND METHOD FOR CONTEXTUALIZING QUERY INSTRUCTIONS USING USER’S RECENT SEARCH HISTORY
2 20120296920 METHOD TO INCREASE CONTENT RELEVANCE USING INSIGHTS OBTAINED FROM USER ACTIVITY UPDATES
3 20120296743 Method and System for Personalized Search Suggestions
4 20120296735 UNIFIED METRIC IN ADVERTISING CAMPAIGN PERFORMANCE EVALUATION
5 20120296730 METHODS AND SYSTEMS FOR GAMIFYING COUPON OFFERINGS