Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688395 | Process and catalyst for upgrading heavy hydrocarbon | Jose Carrazza, Nelson P. Martinez | 1997-11-18 |
| 5688741 | Process and catalyst for upgrading heavy hydrocarbon | Jose Carrazza, Nelson P. Martinez | 1997-11-18 |