Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5992736 | Security mailbox | — | 1999-11-30 |
| 4720629 | Pattern tracer with electronic kerf control with adjustably delayed sampling pulse | — | 1988-01-19 |
| 4625104 | Dual scan optical pattern tracer | Ronald J. Luker | 1986-11-25 |
| 4197453 | Optical pattern tracer | William C. Dell | 1980-04-08 |