| 10237442 |
Security mark with anti-copyable effect |
Edward N. Chapman, Reiner Eschbach |
2019-03-19 |
| 9589217 |
Augmenting barcodes with secondary encoding for anti-counterfeiting |
Reiner Eschbach, Raja Bala, Saurabh Prabhat |
2017-03-07 |
| 9282215 |
Security mark with copyable and non-copyable elements |
Edward N. Chapman, Reiner Eschbach |
2016-03-08 |
| 9277091 |
Embedding information in paper forms |
Zhigang Fan, Reiner Eschbach, Saurabh Prabhat, Raja Bala, Martin S. Maltz |
2016-03-01 |
| 8681387 |
Guilloche mark generation |
Martin S. Maltz, Zhigang Fan, Reiner Eschbach |
2014-03-25 |
| 8482807 |
Embedding information using modulated periodic line patterns |
Zhigang Fan, Reiner Eschbach |
2013-07-09 |
| 8456704 |
Colorimetric matching the perception of a digital data file to hardcopy legacy |
Vishal Monga, Reiner Eschbach |
2013-06-04 |
| 8139270 |
Variable data periodic line patterns for composing a font system |
Zhigang Fan, Reiner Eschbach |
2012-03-20 |
| 7965421 |
Show-through reduction method and system |
Zhigang Fan, Reiner Eschbach, Martin S. Maltz |
2011-06-21 |
| 7787154 |
Font printing system having embedded security information comprising variable data periodic line patterns |
Zhigang Fan, Reiner Eschbach |
2010-08-31 |
| 7295703 |
Method for scanner characterization for color measurement of printed media having four or more colorants |
Raja Bala, Gaurav Sharma |
2007-11-13 |
| 5528386 |
Color printer calibration architecture |
Robert J. Rolleston, Martin S. Maltz |
1996-06-18 |
| 5416613 |
Color printer calibration test pattern |
Robert J. Rolleston, Martin S. Maltz |
1995-05-16 |
| 5305119 |
Color printer calibration architecture |
Robert J. Rolleston, Martin S. Maltz |
1994-04-19 |
