Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578416 | Fuel system | Steven M. Vogel, John A. Sturm, Andrew M. Matulek, Clayton R. Mason | 2003-06-17 |
| 6138813 | Coin mechanism with a piezoelectric film sensor | Robert C. Lamb, Robert Speers, John L. Tansky | 2000-10-31 |