Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313490 | Heat exchanger | Hermann Heeren | 1982-02-02 |
| 4206738 | Heat exchanger | Hermann Heeren | 1980-06-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313490 | Heat exchanger | Hermann Heeren | 1982-02-02 |
| 4206738 | Heat exchanger | Hermann Heeren | 1980-06-10 |