Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4956545 | Heater with tap | Helmut Ohnmacht, Karl-Heinz Nauerth | 1990-09-11 |
| 4357521 | Electrical heating device for fluid media | Helmut Ohnmacht | 1982-11-02 |
| 4350872 | Electrical heating element for fluid media and method for producing same | Helmut Ohnmacht | 1982-09-21 |
| 4341946 | Electrical resistance heating element | Helmut Ohnmacht | 1982-07-27 |
| 4321456 | Electrical hot air appliance | Helmut Ohnmacht | 1982-03-23 |
| 4313049 | Electrical heating element for fluid media | Helmut Ohnmacht | 1982-01-26 |
| 4191880 | Heating element for electrical appliance having a blower | Helmut Ohnmacht | 1980-03-04 |