Patents Examined by K. K. Hantis
  • Programmable standard for use in an apparatus and process for the noninvasive measurement of optically absorbing compounds
    Patent number: 5748308
    Abstract: The present invention provides a programmable filter for use as a standard in correlation spectrometers. Also provided is the use of the programmable standard in a process for determining the concentration of an optically absorbing compound. Also provided is a method and apparatus for noninvasively determining the concentration of an optically absorbing biological sample which incorporates the programmable standard of the invention.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: May 5, 1998
    Assignee: Abbott Laboratories
    Inventors: John M. Lindberg, Robert Eric Heinz