Ives points to the 400 people, who probably submitted most of the 234 granted patents and 1116 patent applications. These employees could soon move into new roles at Microsoft, presumably to work on Bing. But later on down the road, Microsoft could find its search engine build on portions of Yahoo technology, with a license, Ives writes. This scenario would give Microsoft an incentive to renew the 10-year agreement for, well, perhaps another 10.