Google patents granted on 07 June 2011

5 US patents granted on 07 June 2011 and assigned to Google

1 7,958,544 Device authentication
2 7,958,516 Controlling communication within a container document
3 7,958,187 Systems and methods for managing directory harvest attacks via electronic messages
4 7,958,136 Systems and methods for identifying similar documents
5 7,958,128 Query-independent entity importance in books