Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831002 | Cr-promoted hydrotreating catalysts | Teh C. Ho, Larry E. McCandlish, Edward J. Osterhuber | 1989-05-16 |
| 4801570 | Process for preparing a supported, promoted molybdenum and/or tungsten sulfide hydroprocessing catalyst | Teh C. Ho, Allan J. Jacobson, Russell R. Chianelli | 1989-01-31 |