Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880763 | Catalyst for production of hydrocarbons | Sigrid Eri, James G. Goodwin, George Marcelin | 1989-11-14 |
| 4801573 | Catalyst for production of hydrocarbons | Sigrid Eri, James G. Goodwin, George Marcelin | 1989-01-31 |