Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7434694 | Cyclone separator with stacked baffles | — | 2008-10-14 |
| 6686752 | Wear indicator for refractory linings | William L. Heumann, Russell J. Lewis, Edwin D. Tenney, Joseph A. Urban, Mark Noppenberger +1 more | 2004-02-03 |
| 5277879 | Sulfider with removable injectors | Lloyd K. Whittington | 1994-01-11 |
| 5225169 | Reduced heat loss sulfider | Lloyd K. Whittington | 1993-07-06 |
| 5155073 | Demetallization of hydrocarbon conversion catalysts | — | 1992-10-13 |
| 4828684 | Hydrogen production and catalyst demetallization process | — | 1989-05-09 |
| 4824814 | Catalyst treatment and process for using treated catalyst | Jin S. Yoo | 1989-04-25 |
| 4806512 | Virgin catalyst treatment | — | 1989-02-21 |
| 4800185 | Regeneraation of metal contaminated hydrocarbon conversion catalytsts | Jan Otterstedt, Jin S. Yoo | 1989-01-24 |
| 4787968 | Catalyst demetallization and process for using demetallized catalyst | — | 1988-11-29 |
| 4686197 | Catalyst demetallization and process for using demetallized catalyst | — | 1987-08-11 |