Patents by Inventor Christina L. Pierce

Christina L. Pierce 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).

  • Reversible shutter lockout feature
    Patent number: 6438328
    Abstract: A toner container with an orientation dependent shutter mechanism is provided with an orientation independent shutter lockout feature to ensure that a toner container's shutter will not open unless the toner container is inserted properly into a corresponding toner compartment, thereby ensuring that the proper color toner will be inserted into the toner compartment.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: August 20, 2002
    Assignee: Xerox Corporation
    Inventors: Kevin L. Maltzahn, Christina L. Pierce, Laurie M. O'Connor
  • Toner loading bottle
    Patent number: D475397
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: June 3, 2003
    Assignee: Xerox Corporation
    Inventors: Michael Harris, Kevin L. Maltzahn, Christina L. Pierce, Wayne D. Fox, Carlton W. Campbell
  • Toner loading bottle
    Patent number: D482059
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: November 11, 2003
    Assignee: Xerox Corporation
    Inventors: Michael Harris, Kevin L. Maltzahn, Christina L. Pierce, Wayne D. Fox, Carlton W. Campbell