Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5733440 | Catalyst, method and 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 C. Kramer, David S. Smith, Georgieanna L. Scheuerman, Robert W. Bachtel +1 more | 1998-03-31 |
| 5599440 | Catalyst method and 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 C. Kramer, David S. Smith, Georgieanna L. Scheuerman, Robert W. Bachtel +1 more | 1997-02-04 |
| 5498327 | Catalyst, method and 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 C. Kramer, David S. Smith, Georgieanne L. Scheuerman, Robert W. Bachtel +1 more | 1996-03-12 |
| 5409598 | Method of hydroprocessing | David C. Kramer, Bruce E. Stangeland, David S. Smith, Georgieanna L. Scheuerman, Robert W. Bachtel | 1995-04-25 |
| 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, David S. Smith, Georgieanna L. Scheuerman, Robert W. Bachtel | 1994-04-12 |
| 5076908 | Method and 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 C. Kramer, David S. Smith, Georgieanna L. Scheuerman, Robert W. Bachtel | 1991-12-31 |