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:
Aug. 03, 2010
Filed:
Oct. 21, 2002
Applicant:
Poopathy Kathirgamanathan, North Harrow, GB;
Inventor:
Poopathy Kathirgamanathan, North Harrow, GB;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); B41M 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method producing authenticatable documents by incorporating a fluorescent organometallic complex in the toner or in the paper in which the fluorescent organometallic complex gives off light with a characteristic spectrum when exposed to UV light.