Google patents granted on 31 May 2011

7 US patents granted on 31 May 2011 and assigned to Google

1 7,953,763 Method for detecting link spam in hyperlinked databases
2 7,953,746 Contextual query revision
3 7,953,741 Online ranking metric
4 7,953,720 Selecting the best answer to a fact query from among a set of potential answers
5 7,953,642 On-line payment transactions
6 7,953,295 Enhancing text in images
7 7,953,152 Video compression and encoding method