Yahoo patents granted on 14 April 2015

4 US patents granted on 14 April 2015 and assigned to Yahoo

1 9,009,253 Optimizing server resources using multiple retry for high traffic websites
2 9,009,228 Method and apparatus for sharing concurrent ad hoc web content between users visiting the same web pages
3 9,009,164 Techniques for including collection items in search results
4 9,009,152 Smart widgets