Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5667690 | Process for removing noxious compounds | Harmannus Johannes Doddema, Marinus Pieter Harkes | 1997-09-16 |
| 5629018 | Composition for controlled release of an active substance and method for the preparation of such a composition | Jan van der Lugt | 1997-05-13 |