Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D451097 | Single-hand held display unit | Gordon F. Schmeisser | 2001-11-27 |
| D259937 | Electronic game housing | Jeffrey P. Heuel, William F. Palisek | 1981-07-21 |
| D259266 | Electronic pinball game housing | Jeffrey P. Heuel, William F. Palisek | 1981-05-19 |