Patents by Inventor James J. Friedrichs

James J. Friedrichs 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).

  • Local bitmaps for an array of redundant storage devices
    Patent number: 8275951
    Abstract: In accordance with at least some embodiments of the invention, a system comprises a plurality of computers coupled together and to an array of redundant storage devices that is accessible to the plurality of computers. Each of the plurality of computers comprises a local memory that stores at least one bitmap. The least one bitmap logs regions of the redundant array that have been modified.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: September 25, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John J. Andruszkiewicz, Robert A. Brooks, Andrew C. Goldstein, Leonard S. Szubowicz, James J. Friedrichs