Patents by Inventor Keith Robert Preston

Keith Robert Preston 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).

  • Data input and retrieval apparatus
    Patent number: 6446081
    Abstract: Input apparatus for a data processing system includes a processor, storage and graphical display in which a free-form source document is input and processed to parse a source document to locate semantically meaningful entities and to store corresponding content data. The graphical display is arranged to generate a visual representation of the source document in which the semantically meaningful entities are represented by pictorial elements.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: September 3, 2002
    Assignee: British Telecommunications public limited company
    Inventor: Keith Robert Preston