Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6712882 | Process for the purification of industrial waste water from a propylene oxide production process | Johan Hendrik De Bie, Raymond Lawrence June, Marinus Van Zwienen | 2004-03-30 |
| 6500310 | Process for the treatment of waste water | Marinus Van Zwienen | 2002-12-31 |