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. 03, 2012
Filed:
Apr. 05, 2006
Claude-alain Despland, Prilly, CH;
Albert Stichelberger, Renens, CH;
Edgar Müller, Fribourg, CH;
Pierre Degott, Crissier, CH;
Claude-Alain Despland, Prilly, CH;
Albert Stichelberger, Renens, CH;
Edgar Müller, Fribourg, CH;
Pierre Degott, Crissier, CH;
Sicpa Holding SA, Prilly, CH;
Abstract
The invention discloses a security element for a banknote, a document of value, right or identity, a ticket, a label, a branded good identifier, or a tax banderole. The element comprises a combination of a coating containing at least one optically variable pigment having a substantial viewing-angle dependent color variation, with at least one selective spectral absorbing material, which blocks out visible spectral components reflected by the optically variable pigment at orthogonal incidence. The security element appears black when viewed at orthogonal angle, and colored when viewed at grazing angle.