Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7951755 | Emulsified polymer drilling fluid and methods of preparation | Jay Brockhoff | 2011-05-31 |
| 7879768 | Drilling fluid composition comprising hydrophobically associating polymers and methods of use thereof | — | 2011-02-01 |