Patents by Inventor Bruce E. Mueller

Bruce E. Mueller 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).

  • Image forming method using transparent printer media with reflective strips for media sensing
    Patent number: 6106115
    Abstract: A transparent medium for printers and plotters having optical edge and media sensors has one or more reflective strips applied to the non-image side to trip the sensors. The reflective strips can include a narrow strip along one lateral edge to locate the edge, and a wider strip along the other lateral edge to locate the edge and trip the media sensor. The strips are applied by a pressure-sensitive adhesive, and are removed after the printing operations on the medium. The reflective strips can be formed of the same transparent base as the medium, with fillers added to provide sufficient opacity to trip the optical sensors.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: August 22, 2000
    Assignee: Hewlett-Packard Company
    Inventors: Bruce E. Mueller, Mark Wisnosky, Todd R. Medin, William D. Meyer, Peter C. Morris
  • Transparent printer media with reflective strips for media sensing
    Patent number: 5723202
    Abstract: A transparent medium for printers and plotters having optical edge and media sensors has one or more reflective strips applied to the non-image side to trip the sensors. The reflective strips can include a narrow strip along one lateral edge to locate the edge, and a wider strip along the other lateral edge to locate the edge and trip the media sensor. The strips are applied by a pressure-sensitive adhesive, and are removed after the printing operations on the medium. The reflective strips can be formed of the same transparent base as the medium, with fillers added to provide sufficient opacity to trip the optical sensors.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: March 3, 1998
    Assignee: Hewlett-Packard Co.
    Inventors: Bruce E. Mueller, Mark Wisnosky, Todd R. Medin, William D. Meyer, Peter C. Morris
  • Thermal ink jet print device having phase change cooling
    Patent number: 5272491
    Abstract: A thermal ink jet print device having a phase change material, a solid or fluid, disposed in heat exchange proximity to the thermal ink jet printhead to absorb printhead heat energy by changing physical state at a printhead temperature below that at which unacceptable printing takes place and at a rate commensurate with the rate of heat energy input.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: December 21, 1993
    Assignee: Hewlett-Packard Company
    Inventors: Stuart D. Asakawa, John A. Mohr, John L. Stoffel, William D. Kappele, Bruce E. Mueller, Gerold G. Firl
  • Inks for bleed-free ink-jet printing on plain paper
    Patent number: 5091005
    Abstract: Inks comprising, by weight, from about 4% to about 10% formamide, from about 1% to about 10% dye, and the balance water when printed on paper from an ink-jet printer have improved resistance to bleed, especially when printed at a rate up to about 3.7 kHz.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: February 25, 1992
    Assignee: Hewlett-Packard Company
    Inventors: Bruce E. Mueller, John L. Stoffel