Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10274195 | Air/gas admittance device for a combustion appliance | Milos Trenz, Tieme de Jonge, Frank van Prooijen, Jens Wubkes | 2019-04-30 |
| 9134026 | Method for operating a gas burner | Piet Blaauwwiekel | 2015-09-15 |