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Two dimensional barcode and method of authentication of such barcode Grant 10,373,033 - Picard , et al. | 2019-08-06 |
Two dimensional barcode Grant 10,133,973 - Landry , et al. November 20, 2 | 2018-11-20 |
Two Dimensional Barcode And Method Of Authentication Of Such Barcode App 20180197053 - Picard; Justin ;   et al. | 2018-07-12 |
Two Dimensional Barcode App 20180157946 - LANDRY; Paul ;   et al. | 2018-06-07 |
Two Dimensional Barcode And Method Of Authentication Of Such Barcode App 20170124441 - PICARD; Justin ;   et al. | 2017-05-04 |
Two dimensional barcode and method of authentication of such barcode Grant 9,594,993 - Picard , et al. March 14, 2 | 2017-03-14 |
Two Dimensional Barcode And Method Of Authentication Of Such Barcode App 20160267369 - PICARD; Justin ;   et al. | 2016-09-15 |
Document securization method and a document securization device using printing a distribution of dots on said document Grant 8,913,299 - Picard , et al. December 16, 2 | 2014-12-16 |
Method and device superimposing two marks for securing documents against forgery with Grant 8,736,910 - Sagan , et al. May 27, 2 | 2014-05-27 |
Method and device for authenticating geometrical codes Grant 8,727,222 - Picard , et al. May 20, 2 | 2014-05-20 |
Method And Device For Authenticating Geometrical Codes App 20140131458 - PICARD; Justin ;   et al. | 2014-05-15 |
Document Securization Method And A Document Securization Device Using Printing A Distribution Of Dots On Said Document App 20140112525 - PICARD; Justin ;   et al. | 2014-04-24 |
Document securization method and device printing a distribution of dots on said document Grant 8,593,696 - Picard , et al. November 26, 2 | 2013-11-26 |
Method and device for geometric code authentication Grant 8,448,865 - Picard , et al. May 28, 2 | 2013-05-28 |
Visible authentication patterns for printed document Grant 8,189,862 - Zhao , et al. May 29, 2 | 2012-05-29 |
Visible authentication patterns for printed document App 20120063647 - Zhao; Jian ;   et al. | 2012-03-15 |
Method And Device For Securing Documents Against Forgery App 20120033264 - Sagan; Zbigniew ;   et al. | 2012-02-09 |
Method And Device For Authenticating Geometrical Codes App 20110259962 - Picard; Justin ;   et al. | 2011-10-27 |
Visible authentication patterns for printed document Grant 7,991,198 - Zhao , et al. August 2, 2 | 2011-08-02 |
Visible authentication patterns for printed document App 20110122452 - Zhao; Jian ;   et al. | 2011-05-26 |
Techniques for detecting, analyzing, and using visible authentication patterns Grant 7,937,588 - Picard , et al. May 3, 2 | 2011-05-03 |
Visible authentication patterns for printed document Grant 7,809,152 - Zhao , et al. October 5, 2 | 2010-10-05 |
Method And Device For Securing Documents App 20100220364 - Picard; Justin ;   et al. | 2010-09-02 |
Apparatus and methods for improving detection of watermarks in content that has undergone a lossy transformation Grant 7,630,511 - Zhao , et al. December 8, 2 | 2009-12-08 |
Video watermark detection App 20090252370 - Picard; Justin ;   et al. | 2009-10-08 |
Video Watermarking App 20090220070 - Picard; Justin ;   et al. | 2009-09-03 |
Coefficient Selection for Video Watermarking App 20090136083 - Picard; Justin ;   et al. | 2009-05-28 |
Techniques for Detecting, Analyzing, and Using Visible Authentication Patterns App 20080301767 - Picard; Justin ;   et al. | 2008-12-04 |
Visible authentication patterns for printed document App 20060109515 - Zhao; Jian ;   et al. | 2006-05-25 |
Apparatus and methods for improving detection of watermarks in content that has undergone a lossy transformation App 20050025338 - Zhao, Jian ;   et al. | 2005-02-03 |
Apparatus and methods for improving detection of watermarks in content that has undergone a lossy transformation Grant 6,782,116 - Zhao , et al. August 24, 2 | 2004-08-24 |