Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5575882 | Process for the manufacture of composites | Karl-Heinz Holz, Johannes Luke | 1996-11-19 |
| 4404957 | Equipment and process for heating water by solar energy | Armin Bayerle, Karl-Heinz Holz, Johannes Luke | 1983-09-20 |