Patents by Inventor Matthew D. Dillon

Matthew D. Dillon 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).

  • Method and apparatus for indexing documents for message filtering
    Patent number: 6314421
    Abstract: A method and apparatus for a document filtering mechanism is provided. A document indexing mechanism is described. A first document is parsed into elements, and a deterministic pseudo-random score is calculated for at least some of the elements. A subset of the scores is selected based on the values of the scores. The subset of the scores is used as multiple indexes into a database of documents.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: November 6, 2001
    Inventors: David Muir Sharnoff, Matthew D. Dillon