Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7445711 | Filter cartridge and an assembly of a filter housing and at least one such filter cartridge | Frits Nicolaas Johannes Jacobus Greter | 2008-11-04 |
| 7352074 | System for producing hydrogen making use of a stream of water | — | 2008-04-01 |
| 6668860 | Switching device for optionally passing a flow of medium through a first or second treatment member | Fred Greter | 2003-12-30 |
| 6415819 | Switching unit which is composed of a set of switching valves and is suitable for making a first and second medium flow through one of two plate coolers as desired | Fred Greter | 2002-07-09 |