Patents by Inventor John M. Rihl

John M. Rihl 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).

  • Zero corrected optical blood analyte detector
    Patent number: 7039448
    Abstract: The present invention is directed to method and apparatus for non-invasively measuring the concentration of an unknown blood analyte present in a patient. The method involves determining the concentration of a reference analyte present in the patient. Using the non-invasive optical instrument of the invention, the concentrations of the reference analyte and unknown analyte are measured. If the measured reference analyte concentration and determined reference analyte concentration are substantially the same, then the measured unknown analyte concentration is displayed. If the measured reference analyte concentration and determined reference analyte concentration are not substantially the same, then an adjustment factor is applied to the measured unknown analyte concentration and the unknown analyte concentration is displayed.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: May 2, 2006
    Assignee: DIRAmed, LLC
    Inventors: Robert P. Schlegel, John M. Rihl, Steven V. Ricca