Composition and method for hidden identification

Details Composition and method for hidden identification Composition and method for hidden identification

1986-01-28

1988-08-30

Rosenberger, R. A.

Optics: measuring and testing

Document pattern analysis or verification

G06K 974

Patent

active

047672056

ABSTRACT:
An identification method and identification kit are based upon making up groups of microsized particles normally invisible to the naked eye with each particle in each group being of a selected uniform size, shape and color. Coded identification is established by transferring a population of particles from a selected number of the groups to the item to be identified and then confirming such identification by examining the marked item under high magnification with a light microscope.

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Shedding Light on Marking Techniques, May, 1983, Security Management NASA TM78132 entitled "Large-Size Monidisperse Latexes As A Commercial Space Product".
Advances in Identification, Jul. 1984, Security Management 6 Sheets Ion-Guard trade literature (Undated).

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