Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5446168 | Naphthindazole-4,9-quinones | Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen | 1995-08-29 |
| 5117005 | Naphthindazole-4,9-quinones | Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen | 1992-05-26 |
| 5074904 | Naphthindazole-4,9-quinones and use thereof for controlling undesirable plant growth | Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen | 1991-12-24 |
| 5007954 | Controlling undesirable plant growth using naphthindazole-4,9-quinones | Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen | 1991-04-16 |