Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855529 | Isomerization process with preliminary normal paraffin and mono-methyl paraffin feed capture step | Stephen C. Stem | 1989-08-08 |
| 4804802 | Isomerization process with recycle of mono-methyl-branched paraffins and normal paraffins | Stephen C. Stem | 1989-02-14 |
| 4797266 | Method of preparation of a combined ZSM-5-ferrierite aluminosilicate | — | 1989-01-10 |
| 4795623 | Time effective method for preparing ferrierite | — | 1989-01-03 |