Patents by Inventor Terence M. McCaffrey

Terence M. McCaffrey 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).

  • Colloidal-gold electrosensor measuring device
    Patent number: 5468366
    Abstract: The present invention provides a new device for use in measuring lead levels in biological and environmental samples. Using square wave coulometry and colloidal gold particles impregnated on carbon electrodes, the present invention provides a rapid, reliable, portable and inexpensive means of detecting low lead levels. The colloidal gold modified electrodes have microelectrode array characteristics and produce significantly higher stripping detection signals for lead than are produced at bulk gold electrode surfaces. The method is effective in determining levels of lead down to at least 5 .mu.g/dL in blood samples as small as 10 .mu.L.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: November 21, 1995
    Assignee: Andcare, Inc.
    Inventors: Steven Wegner, Michael A. Harpold, Terence M. McCaffrey, Susan E. Morris, Marek Wojciechowski, Junguo Zhao, Robert W. Henkens, Najih Naser, John P. O'Daly