Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286455 | Process for the preparation of hydrocarbons | Jacobus Eilers, Sytze A. Posthuma | 1994-02-15 |
| 5034103 | Distillation column with a draw-off device | Johannes A. Hamer, Pieter Van Der Heijden | 1991-07-23 |