Patent 8239751 was granted and assigned to Google on August, 2012 by the United States Patent and Trademark Office.
A spreadsheet user interface accepts a request for at least one fact, the request comprising a user-selected identifier for the desired fact. Responsive to the entry of the request, a fact repository containing information derived from unstructured documents is accessed. The fact or facts corresponding to the request, if any, are retrieved from the repository, and the results are displayed at the location of the spreadsheet that is associated with the request.