Patents by Inventor Rod Alley

Rod Alley 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: 7243648
    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: September 17, 2004
    Date of Patent: July 17, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xiaofeng Yang, Kenneth E. Trueba, Rod Alley, Winthrop Childers, David Tyvoll, Douglas A. Sexton
  • THERMAL DROP GENERATOR
    Publication number: 20060060191
    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: Application
    Filed: September 17, 2004
    Publication date: March 23, 2006
    Inventors: Xiaofeng Yang, Kenneth Trueba, Rod Alley, Winthrop Childers, David Tyvoll, Douglas Sexton