Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4750989 | Catalyst inventory determination | — | 1988-06-14 |
| 4743356 | Increasing resid hydrotreating conversion | Norman K. McDaniel, Norman R. Woods | 1988-05-10 |
| 4728412 | Pour-point depression of crude oils by addition of tar sand bitumen | — | 1988-03-01 |