Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5605645 | Furnace heater surrounded by a ceramic tube and fastened with a ceramic flange | Ludwig Weiler, Hans Ammon, Fritz Hegewaldt | 1997-02-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5605645 | Furnace heater surrounded by a ceramic tube and fastened with a ceramic flange | Ludwig Weiler, Hans Ammon, Fritz Hegewaldt | 1997-02-25 |