Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5908814 | Drilling fluid additive and method for inhibiting hydration | Arvind D. Patel, Carl Thaemlitz, Emanuel Stamatakis | 1999-06-01 |
| 5424284 | Drilling fluid additive and method for inhibiting hydration | Arvind D. Patel | 1995-06-13 |
| 5350740 | Drilling fluid additive and method for inhibiting hydration | Arvind D. Patel | 1994-09-27 |
| 5149690 | Drilling fluid additive and method for inhibiting hydration | Arvind D. Patel | 1992-09-22 |
| 5134118 | Aqueous based drilling fluid | Arvind D. Patel | 1992-07-28 |
| 4816551 | Oil based drilling fluids | Harris A Oehler, Charles K. Grantham | 1989-03-28 |