Patents by Inventor Denis Bohm

Denis Bohm 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 system for generating time-based identifiers
    Patent number: 7581108
    Abstract: Methods and systems for generating time-based identifiers that are used for identifying items is described. In one embodiment, a master key is assigned to an electronic tag. Time-based other keys are generated based on the master key. Time-based identifiers are generated based on the time-based other keys. The time-based identifiers are useful only for a period of time to a holder of the time-based other keys.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: August 25, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Denis Bohm, Michael G. Lamming, Robert N. Mayo, Jeffrey A. Morgan, Kan Zhang