Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7989402 | Functionalized clay compositions for aqueous based drilling fluids | James M. Foley | 2011-08-02 |
| 7956015 | Equivalent circulating density control in deep water drilling | — | 2011-06-07 |
| 7906461 | Thermally stable compositions and use thereof in drilling fluids | Jeffrey Thompson, Richard Geurtsen | 2011-03-15 |