Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658454 | Hydrocarbon coversion using improved zeolite Beta catalyst | Thomas F. Degnan, George H. Hatzikos, Jocelyn A. Kowalski, Thomas Mebrahtu, Grant H. Yokomizo | 1997-08-19 |
| 5620590 | Hydrocracking process using small crystal size zeolite Y | James R. Katzer, Daria N. Lissy, Robert A. Ware, Stephen S. Wong | 1997-04-15 |