Google patents granted on 23 November 2010

7 US patents granted on 23 November 2010 and assigned to Google

1 7,840,693 Serving media articles with altered playback speed
2 7,840,648 Web-page authoring tool for automatic enrollment in advertising program
3 7,840,572 Document scoring based on document inception date
4 7,840,563 Collective ranking of digital content
5 7,840,557 Search engine cache control
6 7,840,547 Methods and systems for efficient query rewriting
7 7,840,407 Business listing search