Patents by Inventor Cornelis M. Schagen

Cornelis M. Schagen 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: 6072492
    Abstract: An information processing system is programmed to give a user access to a first subset of information items using a first hierarchical multi-level menu-structure on a local work station and to a second such subset using a second such menu-structure on an internet server. The second menu-structure includes at least the sub-menus provided in the first menu-structure. The second information subset includes at least the information items included in the first subset. A user leaving the first menu-structure at a particular sub-menu will enter the second menu-structure in a sub-menu that corresponds to the particular sub-menu. When the user selects to access an information item in the second subset using the second menu, if a current version of the information item is available in the first subset, then unless otherwise specified, the information item in the first subset is accessed as a substitute.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: June 6, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Cornelis M. Schagen, Suzan A. Van Delft, Hugo M. H. Paulissen