Patents by Inventor Thomas W. Ritchford

Thomas W. Ritchford has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Selecting the best answer to a fact query from among a set of potential answers
    Patent number: 7953720
    Abstract: A method and system for selecting a best answer to a factual query. Possible answers to a factual query are identified. The possible answers are scored and the best scoring possible answers are compared to other possible answers to determine how well they are supported. The most supported answer is chosen to be presented to the user.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: May 31, 2011
    Assignee: Google Inc.
    Inventors: Douglas L. T. Rohde, Thomas W. Ritchford