Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782115 | Watermark holograms | Stephen K. Decker, J. Scott Carr, Geoffrey B. Rhoads | 2004-08-24 |
| 6760464 | Halftone watermarking and related applications | — | 2004-07-06 |
| 6694041 | Halftone watermarking and related applications | — | 2004-02-17 |
| 6683966 | Watermarking recursive hashes into frequency domain regions | Jun Tian, Stephen K. Decker | 2004-01-27 |