Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883125 | Cementing oil and gas wells using converted drilling fluid | William N. Wilson, Leon H. Miles, Robert B. Carpenter | 1989-11-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883125 | Cementing oil and gas wells using converted drilling fluid | William N. Wilson, Leon H. Miles, Robert B. Carpenter | 1989-11-28 |