Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6137089 | Heating element | Johan Pragt | 2000-10-24 |
| 5693244 | Apparatus for heating liquids which operates power supply in response to detection of heating element bending | Johan Pragt | 1997-12-02 |