Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4750988 | Vanadium passivation in a hydrocarbon catalytic cracking process | Roger F. Vogel | 1988-06-14 |
| 4707461 | Vanadium passivation in a hydrocarbon catalytic cracking process | Roger F. Vogel | 1987-11-17 |
| 4520120 | Vanadium passivation in a hydrocarbon catalytic cracking process | Roger F. Vogel | 1985-05-28 |
| 4451355 | Vanadium passivation in a hydrocarbon catalytic cracking process | Roger F. Vogel | 1984-05-29 |