Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321765 | Method and apparatus for verifying identity | — | 1994-06-14 |
| 5289253 | Pattern scanning device | David Roy Winterbottom | 1994-02-22 |
| 4947443 | Method and apparatus for verifying identity | — | 1990-08-07 |