Issued Patents All Time
Showing 451–475 of 607 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6985600 | Printing media and methods employing digital watermarking | Aruna B. Kumar, Trent J. Brundage, Brett T. Hannigan, Tony F. Rodriguez, J. Scott Carr | 2006-01-10 |
| 6983051 | Methods for audio watermarking and decoding | — | 2006-01-03 |
| 6978036 | Tamper-resistant authentication techniques for identification documents | Adnan M. Alattar | 2005-12-20 |
| 6975746 | Integrating digital watermarks in multimedia content | Bruce L. Davis, Tony F. Rodriguez | 2005-12-13 |
| 6970573 | Self validating security documents utilizing watermarks | Jonathan Scott Carr, Burt Perry | 2005-11-29 |
| 6968057 | Emulsion products and imagery employing steganography | — | 2005-11-22 |
| 6965682 | Data transmission by watermark proxy | Bruce L. Davis, William Y. Conwell, Douglas B. Evans | 2005-11-15 |
| 6965873 | Electronic commerce using optical input device | — | 2005-11-15 |
| 6959100 | Secure document design with machine readable, variable message encoded in a visible registration pattern | — | 2005-10-25 |
| 6959386 | Hiding encrypted messages in information carriers | — | 2005-10-25 |
| 6950519 | Geographically watermarked imagery and methods | — | 2005-09-27 |
| 6947571 | Cell phones with optical capabilities, and related applications | Megan I. Livermore | 2005-09-20 |
| 6944298 | Steganographic encoding and decoding of auxiliary codes in media signals | — | 2005-09-13 |
| 6922480 | Methods for encoding security documents | — | 2005-07-26 |
| 6920232 | Watermark encoding using arbitrary features | — | 2005-07-19 |
| 6917724 | Methods for opening file on computer via optical sensing | Phillip Andrew Seder, J. Scott Carr, Burt Perry | 2005-07-12 |
| 6882738 | Methods and tangible objects employing textured machine readable data | Bruce L. Davis | 2005-04-19 |
| 6879701 | Tile-based digital watermarking techniques | — | 2005-04-12 |
| 6850626 | Methods employing multiple watermarks | Ammon E. Gustafson | 2005-02-01 |
| 6837586 | Ring optical interferometer | — | 2005-01-04 |
| 6829368 | Establishing and interacting with on-line media collections using identifiers in media signals | Joel R. Meyer | 2004-12-07 |
| 6813366 | Steganographic decoding with transform to spatial domain | — | 2004-11-02 |
| 6804376 | Equipment employing watermark-based authentication function | Ammon E. Gustafson | 2004-10-12 |
| 6804379 | Digital watermarks and postage | — | 2004-10-12 |
| 6804378 | Methods and products employing biometrics and steganography | — | 2004-10-12 |