Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7069817 | Power tongs | — | 2006-07-04 |
| 6237445 | Gripping apparatus for power tongs and backup tools | — | 2001-05-29 |
| 6116118 | Gripping apparatus for power tongs and backup tools | — | 2000-09-12 |
| 5542318 | Bi-directional gripping apparatus | — | 1996-08-06 |
| 5172613 | Power tongs with improved gripping means | — | 1992-12-22 |
| 5161439 | Pivoting jaw assembly | — | 1992-11-10 |
| RE31993 | Cylinder gripping apparatus | — | 1985-10-01 |
| 4281535 | Cylinder gripping apparatus | — | 1981-08-04 |
| 4276771 | Hydrostatic testing apparatus | — | 1981-07-07 |