Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7376242 | Quantization-based data embedding in mapped data | Brett A. Bradley | 2008-05-20 |
| 7340076 | Digital watermarks for unmanned vehicle navigation | Trent J. Brundage | 2008-03-04 |
| 7321667 | Data hiding through arrangement of objects | — | 2008-01-22 |
| 7194106 | Creating electronic forms through digital watermarking | Trent J. Brundage, Brett T. Hannigan | 2007-03-20 |
| 7187780 | Image processing methods using reversible watermarking | Jun Tian, Neil E. Lofgren | 2007-03-06 |
| 7072490 | Symmetry watermark | — | 2006-07-04 |
| 7068809 | Segmentation in digital watermarking | — | 2006-06-27 |
| 7046819 | Encoded reference signal for digital watermarks | Ravi K. Sharma | 2006-05-16 |
| 7006662 | Reversible watermarking using expansion, rate control and iterative embedding | Adnan M. Alattar, Jun Tian | 2006-02-28 |
| 6993152 | Hiding geo-location data through arrangement of objects | Philip Patterson, Neil E. Lofgren, Geoffrey B. Rhoads | 2006-01-31 |
| 6580809 | Quantization-based data hiding employing calibration and locally adaptive quantization | Hugh L. Brunk, Ravi K. Sharma | 2003-06-17 |