Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863712 | Catalysts for reforming hydrocarbon feedstocks | Martyn Vincent Twigg | 1989-09-05 |
| 4810685 | Foam catalysts, method of manufacture and method of using | Martyn Vincent Twigg | 1989-03-07 |