Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824820 | Hydrotreating catalysts comprising a mixture of a sulfide of a promoter metal, amorphous sulfide of trivalent chromium and microcrystalline molybdenum or tungsten sulfide | Allan J. Jacobson, Teh C. Ho, Russell R. Chianelli, Angelo A. Montagna | 1989-04-25 |
| 4812227 | Hydrotreating with catalysts comprising mixtures of an amorphous sulfide or trivalent chromium and microcrystallites of molybdenum sulfide or tungsten sulfide | Allan J. Jacobson, Teh C. Ho, Russell R. Chianelli, Angelo A. Montagna | 1989-03-14 |