Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302357 | Apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed | Bruce E. Stangeland, David S. Smith, James T. McCall, Georgieanna L. Scheuerman, Robert W. Bachtel | 1994-04-12 |
| 5298152 | Process to prevent catalyst deactivation in activated slurry hydroprocessing | — | 1994-03-29 |
| 5294329 | Process to prevent catalyst deactivation in activated slurry hydroprocessing | — | 1994-03-15 |