Patents Represented by Attorney James H. Chaffin

Find this attorney in the Justia Lawyer Directory

  • Hand held explosives detection system
    Patent number: 5138889
    Abstract: The present invention is directed to a sensitive hand-held explosives detection device capable of detecting the presence of extremely low quantities of high explosives molecules, and which is applicable to sampling vapors from personnel, baggage, cargo, etc., as part of an explosives detection system.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: August 18, 1992
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Frank J. Conrad