Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4697428 | Device for concentrating solutions | Henri M. Ruijten, Hans De Bree | 1987-10-06 |
| 4554071 | Pre-column for preconcentrating substances to be chromatographed as well as device for a liquid chromatography system and coupling member for said device | Henri M. Ruijten, Hans De Bree, Elbert Wiegers | 1985-11-19 |