Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834949 | Multistage system for converting olefins to heavier hydrocarbons | Hartley Owen | 1989-05-30 |
| 4832919 | Olefin fractionation and catalytic conversion system with heat exchange means | Hartley Owen, Chung H. Hsia | 1989-05-23 |
| 4832920 | Olefin fractionation and catalytic conversion system | Hartley Owen, Chung H. Hsia | 1989-05-23 |