Google patents granted on 24 January 2012

5 US patents granted on 24 January 2012 and assigned to Google

1 8,103,781 Mechanism for handling persistent requests from stateless clients
2 8,103,740 Cross-domain linking of data types
3 8,103,723 Message server that retains messages deleted by one client application for access by another client application
4 8,103,676 Classifying search results to determine page elements
5 8,103,544 Competitive advertising server