Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10899641 | Degassing device for anaerobic purification device | Jelle Hendrik de Boer, Antonius Bernardus Vallinga, Veronica Henrika Johanna Groot Kormelinck, Jacob Cornelis Theodorus Vogelaar | 2021-01-26 |
| 10843949 | Anaerobic purification device with variable water column | Jelle Hendrik de Boer, Remco de Vries, Veronica Henrika Johanna Groot Kormelinck, Jacob Cornelis Theodorus Vogelaar | 2020-11-24 |
| 8066878 | Anaerobic purification device | Sjoerd Hubertus Jozef Vellinga, Jelle Hendrik de Boer, Antonius Johannes Jorna | 2011-11-29 |
| 6372139 | Circuit purification for the papermaking industry | Ronald Mulder | 2002-04-16 |
| 6063273 | Apparatus for the biological purification of waste water | Antonius Johannes Hendrikus Hyacinthus Engelaar, Sjoerd Hubertus Jozef Vellinga | 2000-05-16 |
| 5972219 | Process for aerobic treatment of waste water | Wilhelmus Johannes Bernardus Maria Driessen | 1999-10-26 |