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:
Apr. 18, 2006
Filed:
Jan. 26, 2002
Applicants:
Milan Vasic, Geneva, CH;
Edgar Muller, Fribourg, CH;
Myron Seto, Lausanne, CH;
Inventors:
Assignee:
SICPA Holding S.A., Prilly, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/64 (2006.01); G06K 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Security documents or articles carrying luminescent marker compounds which show a time-deferred emission characteristic are authenticated by a method and device which allows for rapid extraction of characteristic luminescent parameters, such as emission intensity and time constants. The method is not sensitive to perturbations by ambient light and reduces optical filtering requirements.