Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6913092 | Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling | Don M. Hannegan | 2005-07-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6913092 | Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling | Don M. Hannegan | 2005-07-05 |