Patents by Inventor David Chen Chang

David Chen Chang 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).

  • Query statistics provider
    Patent number: 8099412
    Abstract: A system to provide search query information. The system receives a request for search query information, identifies a set of search queries from a search query log that includes search queries submitted to a search service over a predetermined length of time, and provides the set of search queries. Each of the set of search queries is associated with at least a predetermined number of unique identifiers. Each of the set of search queries is matched to the request for search query information by a combination of exact matches, expanded matches, and broad matches.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: January 17, 2012
    Assignee: Google Inc.
    Inventors: Weipeng Yan, Nicholas C. Fox, Roberto J. Bayardo, David Chen Chang, Monica D. Chawathe
  • QUERY STATISTICS PROVIDER
    Publication number: 20080294630
    Abstract: A system to provide search query information. The system receives a request for search query information, identifies a set of search queries from a search query log that includes search queries submitted to a search service over a predetermined length of time, and provides the set of search queries. Each of the set of search queries is associated with at least a predetermined number of unique identifiers. Each of the set of search queries is matched to the request for search query information by a combination of exact matches, expanded matches, and broad matches.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 27, 2008
    Inventors: Weipeng Yan, Nicholas C. Fox, Roberto J. Bayardo, David Chen Chang, Monica D. Chawathe