Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7165295 | Rope lock with out-of-balance indicator and automatic lockout | Rodney F. Kaiser | 2007-01-23 |
| 5237768 | Castable crab rig | Terry A. Kiekhafer | 1993-08-24 |
| 5136810 | Parking gate | — | 1992-08-11 |