Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5620947 | Water-based high temperature well servicing composition and method of using same | — | 1997-04-15 |
| 5244877 | Rheologically stable water-based high temperature drilling fluids | — | 1993-09-14 |
| 5179076 | Rheologically-stable water-based high temperature drilling fluid | — | 1993-01-12 |