Yahoo patent applications published on 12 April 2007

6 US patent applications published on 12 April 2007 and assigned to Yahoo

1 20070083762 Set of metadata for association with a composite media item and tool for creating such set of metadata
2 20070083675 Instant messaging interoperability between disparate service providers
3 20070083558 Media item registry and associated methods of registering a rights holder and a media item
4 20070083497 Method of searching for media item portions
5 20070083496 user interface for media item portion search tool
6 20070083380 Data container and set of metadata for association with a media item and composite media items