Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4999029 | Preparation of synthesis gas by partial oxidation | Gero Lueth, Rolf Becker, Uwe Kempe, Wolfgang Vodrazka | 1991-03-12 |
| 4828715 | Cleaning and disposal of carbon black and ash containing wastewaters | Bruno Sander, Siegfried Marquardt, Gero Lueth, Uwe Kempe | 1989-05-09 |