Issued Patents All Time
Showing 51–62 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897180 | Catalytic composite and process for mercaptan sweetening | Robert R. Frame | 1990-01-30 |
| 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 |
| 4786625 | Dehydrogenation catalyst compositon | Tamotsu Imai, Hayim Abrevaya, Deng-Yang Jan | 1988-11-22 |
| 4775462 | Non-oxidative method of sweetening a sour hydrocarbon fraction | Tamotsu Imai | 1988-10-04 |
| 4717781 | Process for the dehydrogenation of dehydrogenatable hydrocarbons | Tamotsu Imai, Tai-Hsiang Chao, Maureen L. Bricker | 1988-01-05 |
| 4717779 | Dehydrogenation of dehydrogenatable hydrocarbons | Tamotsu Imai, David E. Mackowiak | 1988-01-05 |
| 4705620 | Mercaptan extraction process | Bruce E. Staehle | 1987-11-10 |
| 4691071 | Dehydrogenation of dehydrogenatable hydrocarbons | — | 1987-09-01 |
| 4652687 | Process for the dehydrogenation of dehydrogenatable hydrocarbons | Tamotsu Imai | 1987-03-24 |
| 4565898 | Dehydrogenation of dehydrogenatable hydrocarbons | Mark J. O'Hara, Tamotsu Imai, David E. Mackowiak | 1986-01-21 |