Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5156244 | Torque sensing automatic shut-off and reset clutch for screwdrivers, nutsetters and the like | Douglas E. Pyles, Phil D. Thorp | 1992-10-20 |
| 5054588 | Torque sensing automatic shut-off and reset clutch for screwdrivers, nutsetters and the like | Phil D. Thorp, Douglas E. Pyles | 1991-10-08 |