Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5049240 | Vaccum distillation system | Johannes A. Hamer, Cornelis J. Van Der Burg, Pieter Van Der Heijden | 1991-09-17 |
| 4579629 | Apparatus for fractional distillation under vacuum | Alfred L. Van Kleef | 1986-04-01 |
| 4201659 | Process for the preparation of gas oil | Pieter B. Kwant, Petrus W. H. L. Tjan, Mohammed Akbar | 1980-05-06 |
| 4200519 | Process for the preparation of gas oil | Pieter B. Kwant, Petrus W. H. L. Tjan, Mohammed Akbar | 1980-04-29 |