Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38957 | Document verification and tracking system for printed material | Abhijit Bhattacharya, Michael Schmitt, Tony Ribeiro, Frank Lorenz, Leon T. Dietz | 2006-01-31 |
| 6324353 | Document verification and tracking system for printed material | Abhijit Bhattacharya, Michael Schmitt, Tony Ribeiro, Frank Lorenz, Leon T. Dietz | 2001-11-27 |
| 6137967 | Document verification and tracking system for printed material | Abhijit Bhattacharya, Michael Schmitt, Tony Ribeiro | 2000-10-24 |