Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5483601 | Apparatus and method for biometric identification using silhouette and displacement images of a portion of a person's hand | — | 1996-01-09 |
| 5335288 | Apparatus and method for biometric identification | — | 1994-08-02 |
| 4402426 | Weighing and dispensing unit | David Appleford | 1983-09-06 |
| 4326645 | Weighing and dispensing unit | David Appleford | 1982-04-27 |
| 4312462 | Weighing and dispensing unit | David Appleford | 1982-01-26 |