Registers – Records – Fluorescent – phosphorescent – radiation emitting
Reexamination Certificate
2007-01-22
2010-11-02
Lee, Michael G (Department: 2876)
Registers
Records
Fluorescent, phosphorescent, radiation emitting
C235S380000, C252S408100, C427S007000, C222S016000
Reexamination Certificate
active
07823791
ABSTRACT:
Particles conveying a code are incorporated into polymer matrix to form a core document substrate. These particles may be colored to create a distinctive look of the document that makes it unique for a particular document issuer and enables visual authentication. Addition of a covert attribute to the particle, such as a UV pigment or hidden layer of material, allows a covert, forensic characteristic and it also allows a mathematical description to be calculated describing the random distribution of a specific area on a document and then captured on it (e.g., in the bar code or magnetic stripe or digital watermark on an ID document).
REFERENCES:
patent: 4046287 (1977-09-01), Hoekstra et al.
patent: 4053433 (1977-10-01), Lee
patent: 6309690 (2001-10-01), Brogger et al.
Haupt Kristy A
L-I Secure Credentialing, Inc.
Lee Michael G
Mintz Levin Cohn Ferris Glovsky and Popeo P.C.
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