Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5263690 | Apparatus for metallurgical treatment of molten steel | Willi Stempel, Gerhard Juenemann | 1993-11-23 |
| 4976611 | Method and apparatus for the thermal treatment of waste materials | Klaus Knop | 1990-12-11 |
| 4852996 | Process for gasifying coal | Klaus Knop, Helmut Kubiak | 1989-08-01 |
| 4756722 | Device for gasifying coal | Klaus Knop, Helmut Kubiak | 1988-07-12 |