Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7821621 | Security reader for automatic detection of tampering and alteration | — | 2010-10-26 |
| 7259841 | Security reader for automatic detection of tampering and alteration | — | 2007-08-21 |
| 7255909 | Security laminate | Brian W. Dunne, Paul D. Graham, Thomas Junck, Mark F. Schulz | 2007-08-14 |
| 6611612 | Security reader for automatic detection of tampering and alteration | — | 2003-08-26 |
| 6019287 | Security reader for automatic detection of tampering and alteration | — | 2000-02-01 |
| 5260690 | Article removal control system | Rick L. Naylor | 1993-11-09 |