Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7958948 | Method and system for return of drilling fluid | — | 2011-06-14 |
| 7913764 | Return line mounted pump for riserless mud return system | David E. Smith, Nils Lennart Rolland, Harald Hufthammer | 2011-03-29 |