Google patents granted on 28 July 2009

5 US patents granted on 28 July 2009 and assigned to Google

1 7,568,148 Methods and apparatus for clustering news content
2 7,568,034 System and method for data distribution
3 7,567,976 Merging objects in a facts database
4 7,567,973 Storing a sparse table using locality groups
5 7,567,959 Multiple index based information retrieval system