Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D421070 | Electronic video game console | Mark Gruber, Ralph Perez | 2000-02-22 |
| D318073 | Driving video game cabinet | — | 1991-07-09 |
| D257560 | Hand held communication aid for the mute and hearing impaired | — | 1980-11-25 |