Yahoo patents granted on 18 November 2014

5 US patents granted on 18 November 2014 and assigned to Yahoo

1 8,893,131 System and/or method for bulk loading of records into an ordered distributed database
2 8,893,034 Motion enabled multi-frame challenge-response test
3 8,892,661 Detecting spam from a bulk registered e-mail account
4 8,892,606 Method and system for media collection expansion
5 8,888,497 Emotional web