Patents by Inventor Richard Henry Guy

Richard Henry Guy 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).

  • Method for non-invasively determining the relative levels of two biological substances
    Patent number: 7693573
    Abstract: An iontophoretic sampling device for non-invasively determining the relative levels of two substances present in a biological system.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: April 6, 2010
    Inventors: Richard Henry Guy, Maria Begona Delgado-Charro
  • METHOD FOR NON-INVASIVELY DETERMINING THE RELATIVE LEVELS OF TWO BIOLOGICAL SUBSTANCES
    Publication number: 20090281405
    Abstract: An iontophoretic sampling device for non-invasively determining the relative levels of two substances present in a biological system.
    Type: Application
    Filed: May 29, 2009
    Publication date: November 12, 2009
    Inventors: Richard Henry GUY, Maria Begona DELGADO-CHARRO
  • Method for non-invasively determining the relative levels of two biological substances
    Patent number: 7555337
    Abstract: The method for non-invasively determining the relative levels of two substances present in a biological system includes the steps of extracting by reverse iontophoresis charged and uncharged substances from said biological system, and collecting said substances, analysing the collected amount of a first extracted substance and a second extracted substance and determining the extraction ratio of the first substance to the second substance to determine their relative levels in the biological system. When the first and second substances are both analytes susceptible to changes in their concentration in the biological system, this method provides information about the relative concentrations of the two substances in the biological system.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: June 30, 2009
    Inventors: Richard Henry Guy, Maria Begona Delgado-Charro