Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839326 | Promoted molybdenum and tungsten sulfide catalysts, their preparation and use | Thomas R. Halbert, Edward I. Stiefel, Teh C. Ho | 1989-06-13 |
| 4826797 | Carbon-containing molybdenum and tungsten sulfide catalysts | Theresa A. Pecoraro | 1989-05-02 |
| 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, John J. Steger, Angelo A. Montagna | 1989-04-25 |
| 4820677 | Amorphous, iron promoted Mo and W sulfide hydroprocessing catalysts and process for their preparation | Allan J. Jacobson, Teh C. Ho, Theresa A. Pecoraro | 1989-04-11 |
| 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, John J. Steger, Angelo A. Montagna | 1989-03-14 |
| 4801570 | Process for preparing a supported, promoted molybdenum and/or tungsten sulfide hydroprocessing catalyst | Archie R. Young, Teh C. Ho, Allan J. Jacobson | 1989-01-31 |
| 4795731 | Transition metal sulfide promoted molybdenum or tungsten sulfide catalysts and their uses for hydroprocessing | Theresa A. Pecoraro, Allan J. Jacobson | 1989-01-03 |