Google patent applications published on 12 April 2012

9 US patent applications published on 12 April 2012 and assigned to Google

1 20120089619 SYSTEMS AND METHODS FOR DETERMINING DOCUMENT FRESHNESS
2 20120089601 Interleaving Search Results
3 20120089600 Methods and Systems for Improving a Search Ranking Using Population Information
4 20120089599 Interleaving Search Results
5 20120089586 Methods and Systems for Improving a Search Ranking Using Population Information
6 20120089459 HYBRID ADVERTISING CAMPAIGN
7 20120089398 METHODS AND SYSTEMS FOR IMPROVING TEXT SEGMENTATION
8 20120089388 Segmenting Words Using Scaled Probabilities
9 20120087591 Method and System for Providing Targeted Documents Based on Concepts Automatically Identified Therein