| Patent | Date |
|---|
Identification and authentication using polymeric liquid crystal material markings
Grant 9,200,204 - Marguerettaz , et al. December 1, 2 | 2015-12-01 |
Multilayer flake with high level of coding
Grant 8,864,037 - Callegari , et al. October 21, 2 | 2014-10-21 |
Substrate with a modified liquid crystal polymer marking
Grant 8,821,756 - Tiller , et al. September 2, 2 | 2014-09-02 |
Identification and authentication using liquid crystal material markings
Grant 8,740,088 - Marguerettaz , et al. June 3, 2 | 2014-06-03 |
Identification and authentication using liquid crystal material markings
Grant 8,734,679 - Marguerettaz , et al. May 27, 2 | 2014-05-27 |
Identification and authentication using polymeric liquid crystal material markings
Grant 8,734,678 - Marguerettaz , et al. May 27, 2 | 2014-05-27 |
Multilayer Flake With High Level Of Coding
App 20130256415 - CALLEGARI; Andrea ; et al. | 2013-10-03 |
Modified marking based on chiral liquid crystal polymers
Grant 8,426,014 - Tiller , et al. April 23, 2 | 2013-04-23 |
Identification And Authentication Using Polymeric Liquid Crystal Material Markings
App 20130069003 - MARGUERETTAZ; Xavier ; et al. | 2013-03-21 |
Substrate With A Modified Liquid Crystal Polymer Marking
App 20120328852 - TILLER; Thomas ; et al. | 2012-12-27 |
Identification And Authentication Using Liquid Crystal Material Markings
App 20120273722 - MARGUERETTAZ; Xavier ; et al. | 2012-11-01 |
Identification And Authentication Using Polymeric Liquid Crystal Material Markings
App 20120061470 - Marguerettaz; Xavier ; et al. | 2012-03-15 |
Modified Marking Based On Chiral Liquid Crystal Polymers
App 20110135853 - TILLER; Thomas ; et al. | 2011-06-09 |
Identification And Authentication Using Liquid Crystal Material Markings
App 20110101088 - Marguerettaz; Xavier ; et al. | 2011-05-05 |
Item carrying at least two data storage elements
Grant 7,798,403 - Tiller , et al. September 21, 2 | 2010-09-21 |
Use of communication equipment and method for authenticating an item, unit and system for authenticating items, and authenticating device
Grant 7,702,108 - Amon , et al. April 20, 2 | 2010-04-20 |
Item Carrying at Least Two Data Storage Elements
App 20080272886 - Tiller; Thomas ; et al. | 2008-11-06 |
Printing ink, use of micro-wires as antennas in security documents, method for producing a security document and methods for authentication of security documents
Grant 7,188,768 - Rozumek , et al. March 13, 2 | 2007-03-13 |
Solid marking composition as writing means, a writing instrument, an optically variable marking layer and use of a plurality of optically variable pigments
Grant 6,793,720 - Muller , et al. September 21, 2 | 2004-09-21 |
Pigments Having A Viewing Angle Dependent Shift Of Color, Method For Producing Said Pigments, Use Of Said Pigments In Security Applications, Coating Composition Comprising Said Pigments And A Detecting Device
Grant 6,695,905 - Rozumek , et al. February 24, 2 | 2004-02-24 |
Inorganic sheet carrying symbols for making pigments
Grant 6,673,420 - Muller , et al. January 6, 2 | 2004-01-06 |
Use of communication equipment and method for authenticating an item, unit and system for authenticating items, and authenticating device
App 20030136837 - Amon, Maurice A. ; et al. | 2003-07-24 |
Solid marking composition as writing means, a writing instrument, an optically variable marking layer and use of a plurality of optically variable pigments
App 20030056688 - Muller, Edgar ; et al. | 2003-03-27 |
Optically Variable Pigments Providing A Color Shift Between Two Distinct Colors, Coating Composition Comprising The Same, Method For Producing The Same And Substrate Coated With The Coating Composition
Grant 6,521,036 - Bleikolm , et al. February 18, 2 | 2003-02-18 |
Pigments having a viewing angle dependent shift of color, method for producing said pigments, use of said pigments in security applications, coating composition comprising said pigments and a detecting device
App 20030015123 - Rozumek, Olivier ; et al. | 2003-01-23 |
Ink composition comprising first and second optically variable pigments
Grant 6,472,455 - Bleikolm , et al. October 29, 2 | 2002-10-29 |
Bleeding ink for printing security documents
Grant 6,306,929 - Amon , et al. October 23, 2 | 2001-10-23 |
Use of inorganic particles and method for making and identifying a substrate or an article
Grant 6,200,628 - Rozumek , et al. March 13, 2 | 2001-03-13 |
Abrasion-removable coating and method of application
Grant 6,160,046 - Bleikolm , et al. December 12, 2 | 2000-12-12 |
Highly reactive printing inks
Grant 5,658,964 - Amon , et al. August 19, 1 | 1997-08-19 |
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