Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7234896 | Vertically folding service arm for a movable platform offshore drilling or servicing rig | Robert Benjamin Donnally | 2007-06-26 |
| 7228919 | Pivoting pipe handler for off-line make up of drill pipe joints | Thomas Yost | 2007-06-12 |