Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4603734 | Heat exchange element of the air-tube type | Wilhelm Wendel | 1986-08-05 |
| 4313490 | Heat exchanger | Liselotte Kraetschmer | 1982-02-02 |
| 4308913 | Cooling tower with elevated heat exchanger elements supported on girders | Dietrich Richter | 1982-01-05 |
| 4206738 | Heat exchanger | Liselotte Kraetschmer | 1980-06-10 |