Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7695606 | Electrolytic device and method for disinfecting water in a water supply system by means of the generation of active chlorine | — | 2010-04-13 |
| 5093000 | Filtration apparatus | Evert J. Rijkhof | 1992-03-03 |
| 5089096 | Preparation of quaternary ammonium hydroxides | Evert J. Rijkhof, Hendricus J. H. Van Der Maas, Gosse Boxhoorn | 1992-02-18 |