Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820455 | Apparatus for redistribution of vapor and liquid in a packed column | Frederik J. Zuiderweg | 1989-04-11 |
| 4344840 | Hydrocracking and hydrotreating shale oil in multiple catalytic reactors | — | 1982-08-17 |