Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8110090 | Deasphalting of gas oil from slurry hydrocracking | Paul R. Zimmerman, Mark Van Wees, Robert S. Haizmann | 2012-02-07 |
| 7686941 | Simultaneous hydrocracking of multiple feedstocks | Gary R. Brierley, Vasant P. Thakkar | 2010-03-30 |
| 5300217 | Hydroprocess utilizing a delta alumina-supported nickel and molybdenum catalyst | Howard D. Simpson | 1994-04-05 |
| 5223472 | Demetallation catalyst | Howard D. Simpson | 1993-06-29 |
| 5007987 | Method for producing needle coke | Michael John Block, Arnold E. Kelley | 1991-04-16 |
| 4849093 | Catalytic aromatic saturation of hydrocarbons | Dennis A. Vauk | 1989-07-18 |
| 4545859 | Method for producing needle coke | Arnold E. Kelley, Michael John Block | 1985-10-08 |
| 4521278 | Method for producing needle coke | Arnold E. Kelley, Michael John Block | 1985-06-04 |
| 4390412 | Process and compositions for reducing fouling of heat exchange surfaces | Louis M. Dvoracek, Paul W. Fischer | 1983-06-28 |
| 4319063 | Process and compositions for reducing fouling of heat exchange surfaces | Louis M. Dvoracek, Paul W. Fischer | 1982-03-09 |