Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5447979 | Organophosphonic polymers and their use as stabilisers for aqueous hydrogen peroxide solutions | Dirck Van Hemelrijk, Jean-Marc Coisne | 1995-09-05 |
| 5338455 | Process for the separation of components in an organic liquid medium and a semi-permeable composite membrane therefor | Dirk M. Koenhen | 1994-08-16 |
| 5274047 | Semipermeable composite membrane, a process for the manufacture thereof, as well as application of such membranes for the separations of components in an organic liquid phase or in the vapor phase | Dirk M. Koenhen | 1993-12-28 |
| 5207908 | Semi-permeable composite membrane and process for manufacturing same | Dirk M. Koenhen | 1993-05-04 |