Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827072 | Dehydrogenation catalyst composition and hydrocarbon dehydrogenation process | Tamotsu Imai, Hayim Abrevaya, Deng-Yang Jan | 1989-05-02 |
| 4824818 | Catalytic composite and process for mercaptan sweetening | Robert R. Frame | 1989-04-25 |
| 4812597 | Dehydrogenation of dehydrogenatable hydrocarbons | Tamotsu Imai | 1989-03-14 |