Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11280705 | System and method for measuring a concentration of a pollutant within a gas | Timothy Van Der Graaf, Einte Holwerda | 2022-03-22 |
| 9587844 | Humidifier and a method of monitoring the water level in the humidifier | Geert-Jan Darwinkel, Timothy Van Der Graaf, Wilhelmina Johanna Gerarda Van De Wassenberg, Jan Buffinga | 2017-03-07 |
| 8487540 | Variable light-level production using different dimming modes for different light-output ranges | Wilhelmus Gerardus Maria Ettes, Schelte Heeringa, Petrus Johannes Bremer | 2013-07-16 |
| 8304998 | Dimmable light generating device | Harko Jan Taekema, Pawel Leshem, Johannes A. Frankena | 2012-11-06 |
| 7196478 | Circuit arrangement | — | 2007-03-27 |
| 6445156 | Speed control | Harry Marinus, Wilhelmus Gerardus Maria Ettes, Gaatze Bareld Bosma | 2002-09-03 |