Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4790372 | Heat exchanger having fusion bonded plastic tubes/support plate | Hermann Gemeinhardt | 1988-12-13 |
| 4740344 | Method for the production of heat and/or fluid exchangers that contain tubes | Rudi Wollbeck, Thomas Zang, Dirk Albert Klarenberg | 1988-04-26 |