Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4263133 | Catalytic reforming and hydrocracking of organic compounds employing zinc titanate as the catalytic agent | Lewis E. Drehman, Darrell W. Walker | 1981-04-21 |
| 4263132 | Catalytic reforming and hydrocracking of organic compounds employing promoted zinc titanate as the catalytic agent | Lewis E. Drehman | 1981-04-21 |
| 4252680 | Oxidative dehydrogenation catalyst preparation | Darrell W. Walker | 1981-02-24 |
| 4218343 | Dehydrogenation of organic compounds | Darrell W. Walker, Robert J. Hogan | 1980-08-19 |
| 4218346 | Zinc titanate catalyst for dehydrogenation of hydrocarbons | Darrell W. Walker | 1980-08-19 |
| 4191846 | Catalytic dehydrogenation process | Lewis E. Drehman | 1980-03-04 |