Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824557 | Process for mixing cracking catalyst with a fluid hydrocarbon | Robert R. Cartmell | 1989-04-25 |
| 4808382 | Process for mixing cracking catalyst with a fluid hydrocarbon | Robert R. Cartmell | 1989-02-28 |