Patents by Inventor Doreen Y. Chen

Doreen Y. Chen 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).

  • Patent number: 6349307
    Abstract: An information organization and retrieval system that efficiently organizes documents for rapid and efficient search and retrieval based upon topical content is presented. The information organization and retrieval system is optimized for the organization and retrieval of only those documents that are relevant to a given set of predefined topics. If a document does not have a topic that is included in the given set of topics, the document is excluded from the provided service. In like manner, if a document includes a topic that is specifically banned from the provided service, it is excluded. In this paradigm, the provider purposely limits the scope of the provided search and retrieval services, but in so doing provides a more efficient and effective service that is targeted to an expected user demand.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: February 19, 2002
    Assignee: U.S. Philips Corporation
    Inventor: Doreen Y. Chen