Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5402946 | Exploitation of plastic wastes | Thomas Geiger, Helmut Seifert, Ulrich Traegner-Duehr, Ulrich Broeckel, Joachim Meyer +1 more | 1995-04-04 |
| 4971781 | Working up sodium sulfate-containing residues | Hermann Meyer, Gerhard Pforr | 1990-11-20 |