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. 31, 2002
Filed:
Jan. 19, 2001
Applicant:
Inventors:
Bruce J. Kaiser, St. Louis, MO (US);
Gerhard A. Meyer, Worthington, OH (US);
Assignee:
KeyMaster Technologies, Inc., Kennewick, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 2/3223 ;
U.S. Cl.
CPC ...
G01N 2/3223 ;
Abstract
Secure documents and methods and apparatus for making the same. The documents are made secure using apparatus and methods in which one or more taggants are placed in the paper or ink of the document. The present or absence of the taggant within the document is detected by x-ray fluorescence analysis, thereby identifying or verifying the document.