Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D309246 | Screwdriver | Steven S. Cascio, Donald J. Caldwell, Steven R. Wente, Mark S. Bakula | 1990-07-17 |
| D307236 | Screwdriver | Steven S. Cascio, Donald J. Caldwell, Steven R. Wente, Mark S. Bakula | 1990-04-17 |