Patents by Inventor Oliver Duerr

Oliver Duerr 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).

  • Geared drive hub assembly for a printer cartridge
    Patent number: 6666597
    Abstract: A geared drive hub assembly for a printer cartridge containing a geared drive hub removably engaged with a spool. The geared drive hub contains a gear and a base connected to the gear; the base is integrally connected to a first stepped spline, a second stepped spline, and a third stepped spline. The spool contains a device for engaging each of the stepped splines.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: December 23, 2003
    Assignee: International Imaging Materials Inc.
    Inventors: Joel D Neri, Oliver Duerr, Jens Duerr
  • Geared drive hub
    Patent number: D511186
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: November 1, 2005
    Assignee: International Imaging Materials, Inc.
    Inventors: Joel Neri, Oliver Duerr, Jens Duerr