Patents by Inventor Amy Van Liew

Amy Van Liew 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).

  • Multi-component installation feedback system for replacement print cartridges, valve holders, and service station cassettes for on board ink delivery systems replenishment
    Patent number: 6179401
    Abstract: An inkjet printing system which provides feedback to enable the user to determine whether various replaceable components such as print cartridges, valve holders, and service station cassettes have been installed in proper position. The system includes a printhead carriage and a first sensor feedback device to determine whether a printhead is installed in an operable position on the carriage. The system also includes at least one off-carriage ink supply to which a printhead or printheads on the carriage is/are periodically connected for periodically providing ink to the printheads and a second sensor feedback device to determine whether the replaceable. off-carriage ink supplies are installed in an operable position.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: January 30, 2001
    Assignee: Hewlett-Packard Company
    Inventors: Ronald D. Stephens, Jr., Don Boutin, Manel Martinez, Brian Canfield, Amy Van Liew