Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658454 | Hydrocarbon coversion using improved zeolite Beta catalyst | Robert P. L. Absil, George H. Hatzikos, Jocelyn A. Kowalski, Thomas Mebrahtu, Grant H. Yokomizo | 1997-08-19 |
| 5643440 | Production of high viscosity index lubricants | William S. Borghard, Dominick N. Mazzone | 1997-07-01 |
| 5629463 | Naphthalene alkylation with RE and mixed H/NH3 form catalyst | Susan Ardito, Henry Ashjian, Terry E. Helton, Quang N. Le, Augusto Rodolfo Quinones | 1997-05-13 |
| 5601699 | Method for cracking hydrocarbons | Terry E. Helton, Grant H. Yokomizo | 1997-02-11 |