Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309329 | Aqueous drilling fluid additive | Alphonse C. Perricone, Dorothy P. Enright | 1982-01-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309329 | Aqueous drilling fluid additive | Alphonse C. Perricone, Dorothy P. Enright | 1982-01-05 |