Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8364966 | Digital watermark systems and methods | Andrew Johnson | 2013-01-29 |
| 8037311 | Digital watermark systems and methods | Andrew Johnson | 2011-10-11 |
| 7987370 | Digital watermark systems and methods | Andrew Johnson | 2011-07-26 |
| 7269734 | Invisible digital watermarks | Andrew Johnson | 2007-09-11 |