Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6420319 | Well treatment method employing new and improved drilling fluids and additives therefor | Brent L. Estes | 2002-07-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6420319 | Well treatment method employing new and improved drilling fluids and additives therefor | Brent L. Estes | 2002-07-16 |