Patents Examined by Michael P. Ngheim
  • Method and apparatus for keying ink supply containers
    Patent number: 6364472
    Abstract: The present disclosure relates to an ink supply container for containing ink. The ink supply container is configured for providing ink to an ink jet printing system. The ink container includes a first feature indicative of an ink family of a plurality of ink families associated with ink contained in the container. Also included is a second feature spaced from the first feature. The second feature is indicative of an ink color of a plurality of ink colors associated with ink in the container.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: April 2, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Susan Hmelar, David O. Merrill, Glen E. Schmidt, John A. Underwood, Mark J. Green, Thomas Cocklin, Bruce Cowger, Norman E. Pawlowski, Jr., John A. Barinaga, Charles R. Steinmetz, Curt G. Gonzales, John F. Wilson