Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5778991 | Directional boring | James Richard Rankin, Mark VanHouwelingen | 1998-07-14 |
| 5687807 | Cutter head for trenchless boring machine | James A. Woods | 1997-11-18 |
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5778991 | Directional boring | James Richard Rankin, Mark VanHouwelingen | 1998-07-14 |
| 5687807 | Cutter head for trenchless boring machine | James A. Woods | 1997-11-18 |