Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D737219 | Door contact switch | — | 2015-08-25 |
| 8478117 | Heating device and heat exchanger | Hartmut Eisenhauer | 2013-07-02 |
| D664633 | Bimetallic regulator with an adjusting wheel integrated in the housing for heating installations | — | 2012-07-31 |