Issued Patents 1994
Showing 1–1 of 1 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 | David C. Kramer, Bruce E. Stangeland, James T. McCall, Georgieanna L. Scheuerman, Robert W. Bachtel | 1994-04-12 |