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:
Nov. 29, 2011
Filed:
Jul. 28, 2003
Friedrich Kastner, Grieskirchen, AT;
Martin Bergsmann, Liniz, AT;
Harald Walter, Birmensdorf, CH;
Georg Bauer, Fraham, AT;
Ralph Domnick, Lingen/Ems, DE;
Friedrich Kastner, Grieskirchen, AT;
Martin Bergsmann, Liniz, AT;
Harald Walter, Birmensdorf, CH;
Georg Bauer, Fraham, AT;
Ralph Domnick, Lingen/Ems, DE;
Hueck Folien Ges .M.B.I.I., Baumgartenberg, AT;
November AG, Erlangen, DE;
Abstract
The invention relates to a method for producing tamper-proof identification elements, and to tamper-proof identification elements produced according to said method and consisting respectively of at least one layer () reflecting electromagnetic waves (), a spacer layer, and a layer consisting of metallic clusters (). According to said method, a partial or all-over layer reflecting electromagnetic waves is applied to a carrier substrate (), followed by at least one partial and/or all-over polymer layer having a defined thickness (), and a layer consisting of metallic clusters which is produced by means of a method using vacuum technology or from systems based on solvents is then applied to said spacer layer(s).