Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859311 | Catalytic dewaxing process using a silicoaluminophosphate molecular sieve | — | 1989-08-22 |
| 4859312 | Process for making middle distillates using a silicoaluminophosphate molecular sieve | — | 1989-08-22 |
| 4795546 | Process for stabilizing lube base stocks derived from neutral oils | — | 1989-01-03 |