Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8064102 | Embedding frequency modulation infrared watermark in digital document | Yonghui Zhao, Zhigang Fan, Danield A. Robbins | 2011-11-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8064102 | Embedding frequency modulation infrared watermark in digital document | Yonghui Zhao, Zhigang Fan, Danield A. Robbins | 2011-11-22 |