Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5624547 | Process for pretreatment of hydrocarbon oil prior to hydrocracking and fluid catalytic cracking | Chakka Sudhakar, Paul O. Fritz, Carl J. Kjellson, Hua Huang | 1997-04-29 |
| 5538930 | Hydrotreating of cracked naphtha | Chakka Sudhakar, Phillip L. Dahlstrom, Mahendra S. Patel, Edwin L. Patmore | 1996-07-23 |
| 5500401 | Method for selective hydrodenitrogenation of raw oils | Chakka Sudhakar, Frank Dolfinger, Jr. | 1996-03-19 |
| 5423975 | Selective hydrodesulfurization of naphtha using spent resid catalyst | Chakka Sudhakar, Ajit K. Bhattacharya | 1995-06-13 |
| 5423976 | Hydrotreating of cracked naphtha | Chakka Sudhakar, Phillip L. Dahlstrom, Mahendra S. Patel, Edwin L. Patmore | 1995-06-13 |
| 5389241 | Method for selective hydrodenitrogenation of raw oils | Chakka Sudhakar, Frank Dolfinger, Jr. | 1995-02-14 |
| 5286373 | Selective hydrodesulfurization of naphtha using deactivated hydrotreating catalyst | Chakka Sudhakar | 1994-02-15 |
| 5275994 | Process for preparing a catalyst for removal of hydroprocessing impurities | Jeffrey G. Weissman, Max R. Cesar | 1994-01-04 |
| 5169822 | Catalysts for removal of impurities by the hydroprocessing of hydrocarbons | Jeffrey G. Weissman, Max R. Cesar | 1992-12-08 |