Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688736 | Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst | James Seamans, Wendy B. Dominguez, Andrew A. Chen | 1997-11-18 |
| 5468372 | Process of hydrotreating and/or hydrocracking hydrocarbon streams or tail gas treating sulfur-containing gas streams | James Seamans, Wendy B. Dominguez, Andrew A. Chen | 1995-11-21 |
| 5292702 | Presulfurized hydrotreating, hydrocracking or tail gas treating catalyst | James Seamans, Wendy B. Dominguez, Andrew A. Chen | 1994-03-08 |
| 5215954 | Method of presulfurizing a hydrotreating, hydrocracking or tail gas treating catalyst | James Seamans, Wendy B. Dominguez, Andrew A. Chen | 1993-06-01 |
| 5041404 | Method of presulfiding a hydrotreating, hydrocracking or tail gas treating catalyst | James Seamans, James Gerard Welch, Neal G. Gasser | 1991-08-20 |
| 4776945 | Single-stage hydrotreating process | Don M. Washecheck | 1988-10-11 |
| 4701254 | Static bed wax decolorization process | Lawrence W. Maas, Richard A. Geiman | 1987-10-20 |
| 4548920 | Hydrodenitrification catalyst | Mark Thompson | 1985-10-22 |
| 4534852 | Single-stage hydrotreating process for converting pitch to conversion process feedstock | Don M. Washecheck | 1985-08-13 |
| 4530911 | Hydrodenitrification catalyst | Robert Charles Ryan, Don M. Washecheck | 1985-07-23 |