Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743384 | Carboxymethyl guar based drilling fluids | Cheng Lu, Carl A. Lukach | 1988-05-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743384 | Carboxymethyl guar based drilling fluids | Cheng Lu, Carl A. Lukach | 1988-05-10 |