The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 1998
Filed:
Jun. 04, 1997
Applicant:
Inventors:
Ralph H Hill, Jr, San Antonio, TX (US);
James R Keys, San Antonio, TX (US);
Assignee:
Southwest Research Institute, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
356311 ; 356318 ;
Abstract
A method and apparatus based on the exploitation of quantum effects related to stimulated emission for detecting the presence of aircraft or missile exhaust plumes in the atmosphere. In the preferred embodiment, the present invention is directed toward detecting electromagnetic radiation due to the presence of chemical compounds existing in the exhaust plume which occur in areas of the spectrum not normally interrogated; that is, in the regions of 0.2-200 microns and 1 KHz-1000 GHz.