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:
May. 08, 2007
Filed:
May. 09, 2003
Applicants:
Andreas Schilling, Hagendorn, CH;
Wayne Robert Tompkin, Baden, CH;
René Staub, Hagendorn, CH;
Inventors:
Assignee:
Leonard Kurz GmbH & Co. KG, Furth, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to an optically variable element having surface portions with achromatic surface structures and different scatter, diffraction and reflection characteristics. The achromatic surface structures are combined with a thin-film structure, whereby upon turning or tilting the optically variable element, it is not the impression of a continuous color transition, but a defined, almost discrete color change that is produced for the viewer.