Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4508628 | Fast drilling invert emulsion drilling fluids | Thad O. Walker, Harry L. Dearing, Jr. | 1985-04-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4508628 | Fast drilling invert emulsion drilling fluids | Thad O. Walker, Harry L. Dearing, Jr. | 1985-04-02 |