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.

Date of Patent:
Jul. 18, 2006

Filed:

Mar. 19, 2004
Applicants:

Gerrit L. Verschuur, Lakeland, TN (US);

David M. Uland, Granville, OH (US);

Chauncey T. Mitchell, Jr., Lakeland, TN (US);

Inventors:

Gerrit L. Verschuur, Lakeland, TN (US);

David M. Uland, Granville, OH (US);

Chauncey T. Mitchell, Jr., Lakeland, TN (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 19/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A unique conductivity pattern is applied to printable articles to provide a 'signature' for later verifying the authenticity of the printable articles. Preferably, the conductivity pattern is hidden from sight and differs from other conductivity patterns applied to other printable articles in an effectively random manner. Capacitive sensors read the conductivity patterns, and the resulting data for recording the signatures reflects not only details of the conductivity patterns themselves but also the characteristics of the capacitive sensors and their use.


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