Patents by Inventor Frank E. Zuhde

Frank E. Zuhde 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).

  • Precise droplet injection for calibrating a gas chromatography instrument
    Publication number: 20110036142
    Abstract: A method and apparatus for calibrating a gas chromatography instrument by forcefully shooting a measured droplet which securely passes through a confined passageway without direct intervention of human hands into the entry throat of the instrument so as to avoid contaminating the apparatus or impairing the accuracy of the instrument.
    Type: Application
    Filed: October 26, 2010
    Publication date: February 17, 2011
    Inventors: Gary W. Watson, Robert E. Pearce, Salin M. Motiwala, Frank E. Zuhde
  • Precise droplet injection for calibrating a gas chromatography instrument
    Patent number: 7832252
    Abstract: A method and apparatus for calibrating a gas chromatography instrument by forcefully shooting a measured droplet which securely passes through a confined passageway without direct intervention of human hands into the entry throat of the instrument so as to avoid contaminating the apparatus or impairing the accuracy of the instrument.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: November 16, 2010
    Inventors: Gary W. Watson, Robert E. Pearce, Salin M. Motiwala, Frank E. Zuhde
  • Precise droplet injection for calibrating a gas chromatography instrument
    Publication number: 20080083260
    Abstract: A method and apparatus for calibrating a gas chromatography instrument by forcefully shooting a measured droplet which securely passes through a confined passageway without direct intervention of human hands into the entry throat of the instrument so as to avoid contaminating the apparatus or impairing the accuracy of the instrument.
    Type: Application
    Filed: June 22, 2007
    Publication date: April 10, 2008
    Inventors: Gary W. Watson, Robert E. Pearce, Salin M. Motiwala, Frank E. Zuhde