Patents by Inventor Kenneth E. Truba

Kenneth E. Truba 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).

  • Thermal drop generator
    Patent number: 7469696
    Abstract: A silicon die having an orifice layer with plural openings formed therein defines a drop ejection device for use in a handheld inhaler. An underlying control layer defines fluid chambers, each carrying a heat transducer. A control system energizes selected heat transducers to heat fluid in the chambers, vaporizing the fluid, which is ejected through the orifices in small droplets.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: December 30, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaofeng Yang, Rod Alloy, Kenneth E. Truba