Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7907749 | Multi-stage watermarking process and system | Xin Wang, Steve Okamoto, Nancy Lynn Ishigo | 2011-03-15 |
| 7609848 | Multi-stage watermarking process and system | Xin Wang, Steve Okamoto, Nancy Lynn Ishigo | 2009-10-27 |
| 7184571 | Multi-stage watermarking process and system | Xin Wang, Steve Okamoto, Nancy Lynn Ishigo | 2007-02-27 |
| 6912294 | Multi-stage watermarking process and system | Xin Wang, Steve Okamoto, Nancy Lynn Ishigo | 2005-06-28 |