Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835331 | Process for the oligomerization of olefinic hydrocarbons | Harold U. Hammershaimb | 1989-05-30 |
| 4824818 | Catalytic composite and process for mercaptan sweetening | Jeffery C. Bricker | 1989-04-25 |
| 4795851 | Process for the oligomerization of olefins and a catalyst thereof | Tamotsu Imai | 1989-01-03 |
| 4795852 | Process for the oligomerization of olefins and a catalyst thereof | Paul T. Barger | 1989-01-03 |