Patents by Inventor Rick L. Hubert

Rick L. Hubert 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).

  • Printheads having improved heater chip construction
    Patent number: 7097280
    Abstract: An improved heater chip for an ink jet print head, the chip including an active heater array and an inactive heater array located adjacent to and extending away from the end of the active heater array. The inactive heater array provides a region adjacent the end of the active heater array that is substantially planar, and also provides a plurality of current paths which reduces energy differences between heater resistors adjacent the end of the active heater array and other heater resistors in the heater array.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: August 29, 2006
    Assignee: Lexmark International, Inc.
    Inventors: Rick L. Hubert, George K. Parish, Kristi M Rowe, John G. Edelen, Paul W. Graf, Carl Sullivan