Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7749941 | Method and composition for improving performance of aqueous and polymer based fluids at high temperatures | William Walter Shumway, Kenneth W. Pober | 2010-07-06 |
| 7541316 | Wellbore treatment fluids having improved thermal stability | — | 2009-06-02 |
| 7528095 | Methods and compositions for improving the thermal stability of aqueous polymeric wellbore treatment fluids | — | 2009-05-05 |