Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5332329 | Anti-twist bushing | Thomas R. Hill | 1994-07-26 |
| 5125296 | Pneumatic hose clamp assembly tool | Carl Ramey | 1992-06-30 |
| D312383 | Strain relief bushing | Royce W. Hill | 1990-11-27 |
| D312203 | Strain relief bushing | Royce W. Hill | 1990-11-20 |
| D300603 | Strain relief bushing for an electric cable | Royce W. Hill | 1989-04-11 |
| 4729534 | Strain relief bushings | Royce W. Hill | 1988-03-08 |