Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9821273 | Reverse osmosis system | Welm Friedrichsen, Palle Olsen, Erik Haugaard | 2017-11-21 |
| 8444110 | Valve arrangement | Verner Smidt, Siegfried Zenker, Erik Haugaard, Carsten Christensen, Welm Friedrichsen | 2013-05-21 |