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Method for determining a printer's signature and the number of dots per inch printed in a document to provide proof that the printer printed a particular document
Grant RE45,828 - Mackay , et al. December 29, 2 | 2015-12-29 |
Document Security Utilizing Color Gradients
App 20120080525 - Cordery; Robert A. ; et al. | 2012-04-05 |
Document security utilizing color gradients
Grant 8,041,645 - Cordery , et al. October 18, 2 | 2011-10-18 |
Detecting printed image copies using phase-space-encoded fragile watermark
Grant 7,995,246 - Cordery , et al. August 9, 2 | 2011-08-09 |
Method and system for validating a security marking
Grant 7,966,267 - Auslander , et al. June 21, 2 | 2011-06-21 |
Copy detection using contour analysis
Grant 7,827,171 - Brosseau , et al. November 2, 2 | 2010-11-02 |
Copy detection system using correlations of copy detection patterns
Grant 7,787,152 - Haas , et al. August 31, 2 | 2010-08-31 |
Meter tape with location indicator used for unique identification
Grant 7,747,544 - Cordery , et al. June 29, 2 | 2010-06-29 |
Method And System For Validating A Security Marking
App 20100117350 - Auslander; Judith D. ; et al. | 2010-05-13 |
System And Method For Tracking Documents
App 20090172777 - Hansen; Gary G. ; et al. | 2009-07-02 |
Method and system for validating a security marking
Grant 7,536,553 - Auslander , et al. May 19, 2 | 2009-05-19 |
Fragile watermark for detecting printed image copies
Grant 7,446,891 - Haas , et al. November 4, 2 | 2008-11-04 |
Method for printing two dimensional barcodes to reduce reading errors
Grant 7,424,975 - Cordery , et al. September 16, 2 | 2008-09-16 |
Method for printing two dimensional barcodes to reduce reading errors
App 20080054080 - Cordery; Robert A. ; et al. | 2008-03-06 |
Halftone watermarking and related applications
Grant 7,286,685 - Brunk , et al. October 23, 2 | 2007-10-23 |
Meter tape with location indicator used for unique identification
App 20070130091 - Cordery; Robert A. ; et al. | 2007-06-07 |
Copy detection using contour analysis
App 20070078906 - Brosseau; William A. ; et al. | 2007-04-05 |
Copy detection system using correlations of copy detection patterns
App 20070076239 - Haas; Bertrand ; et al. | 2007-04-05 |
Method for embedding information in an image
Grant 7,191,336 - Zeller , et al. March 13, 2 | 2007-03-13 |
Fragile water mark printed with two component inks and process
Grant 7,114,657 - Auslander , et al. October 3, 2 | 2006-10-03 |
Halftone watermarking and related applications
App 20060210108 - Brunk; Hugh L. ; et al. | 2006-09-21 |
Postage indicia including color bar sequence to aid in authentication
Grant 7,055,746 - MacKay , et al. June 6, 2 | 2006-06-06 |
Authenticating printed objects using digital watermarks associated with multidimensional quality metrics
Grant 7,054,461 - Zeller , et al. May 30, 2 | 2006-05-30 |
Method for reading information that has been embedded in an image
Grant 7,013,024 - Cordery , et al. March 14, 2 | 2006-03-14 |
Tonal compensation for graphic security features
App 20060020802 - Haas; Bertrand ; et al. | 2006-01-26 |
Postage indicia including color bar sequence to aid in authentication
App 20050224580 - MacKay, Donald G. ; et al. | 2005-10-13 |
Method for determining the information capacity of a paper channel and for designing or selecting a set of bitmaps representative of symbols to be printed on said channel
Grant 6,947,179 - Cordery , et al. September 20, 2 | 2005-09-20 |
Method for detecting and redirecting misdirected mail
Grant 6,911,910 - Sansone , et al. June 28, 2 | 2005-06-28 |
Fragile water mark printed with two component inks and process
App 20050127187 - Auslander, Judith D. ; et al. | 2005-06-16 |
Method for preventing counterfeiting of articles of manufacture
Grant 6,904,525 - Berson , et al. June 7, 2 | 2005-06-07 |
Detecting printed image copies using phase-space-encoded fragile watermark
App 20050111027 - Cordery, Robert A. ; et al. | 2005-05-26 |
Fragile watermark for detecting printed image copies
App 20050114668 - Haas, Bertrand ; et al. | 2005-05-26 |
Document security utilizing color gradients
App 20050071295 - Cordery, Robert A. ; et al. | 2005-03-31 |
Method for detecting and redirecting misdirected mail
App 20040049315 - Sansone, Ronald P. ; et al. | 2004-03-11 |
Method for determining a printer's signature to provide proof that the printer printed a particular document
Grant 6,612,684 - Mackay , et al. September 2, 2 | 2003-09-02 |
Authenticating printed objects using digital watermarks associated with multidimensional quality metrics
App 20030156733 - Zeller, Claude ; et al. | 2003-08-21 |
Method For Determining A Printer's Signature To Provide Proof That The Printer Printed A Particular Document
App 20030112291 - Mackay, Donald G. ; et al. | 2003-06-19 |
Method for embedding information in an image
App 20030052178 - Zeller, Claude ; et al. | 2003-03-20 |
Method for reading information that has been embedded in an image
App 20030002711 - Cordery, Robert A. ; et al. | 2003-01-02 |
Method and system for validating a security marking
App 20030005303 - Auslander, Judith D. ; et al. | 2003-01-02 |
Method for utilizing a fragile watermark for enhanced security
App 20020176114 - Zeller, Claude ; et al. | 2002-11-28 |
Method for determining the information capacity of a paper channel and for designing or selecting a set of bitmaps representative of symbols to be printed on said channel
App 20020122196 - Cordery, Robert A. ; et al. | 2002-09-05 |
Machine readable water based red fluorescent ink compositions
Grant 6,284,027 - Auslander , et al. September 4, 2 | 2001-09-04 |
Method and system for automatic recognition of digital indicia images deliberately distorted to be non readable
Grant 6,058,190 - Cordery , et al. May 2, 2 | 2000-05-02 |
Double pulse magnetic markers
Grant 5,017,907 - Cordery , et al. May 21, 1 | 1991-05-21 |
Reversible resistant device
Grant 4,940,959 - Zeller , et al. July 10, 1 | 1990-07-10 |
Organic matrix composites reinforced with intercalated graphite
Grant 4,414,142 - Vogel , et al. November 8, 1 | 1983-11-08 |
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