Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7124934 | Document authentication method and apparatus | — | 2006-10-24 |
| 6798637 | Dynamic air ionizer and method | — | 2004-09-28 |
| 6791815 | Dynamic air ionizer and method | — | 2004-09-14 |
| 6764000 | Document authentication method and apparatus | — | 2004-07-20 |
| 5177694 | Computerized color matching | Iain Cartwright | 1993-01-05 |