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:
Aug. 28, 2012
Filed:
Nov. 20, 2006
Applicants:
Mark A. Stevens, Oviedo, FL (US);
Leslie D. Kramer, Longwood, FL (US);
Randy Pike, Grant, FL (US);
Inventors:
Assignee:
Lockheed Martin Corporation, Bethesda, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21K 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of detecting changes in a scene comprising placing a fluorescent and/or phosphorescent compound in the scene and monitoring for elimination or change in position of the phosphorescent compound. Also a liquid fluorescent and/or phosphorescent material comprising one or more compounds that are fluorescent and/or phosphorescent in infrared frequencies and substantially not fluorescent and/or phosphorescent in visible light frequencies and a carrier.