Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4324688 | Regeneration of cracking catalyst | Leonce F. Castagnos, Jr., Roy E. Pratt | 1982-04-13 |
| 4304659 | Method for controlling regenerator temperature in a fluidized catalytic cracking process | Roy E. Pratt, Leonce F. Castagnos, Jr. | 1981-12-08 |