Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808212 | Oxime esters of substituted quinoline-8-carboxylic acids and use thereof as herbicides | Peter Plath, Karl Eicken, Bernd Zeeh, Helmut Hagen, Rolf-Dieter Kohler +2 more | 1989-02-28 |
| 4804404 | 2 and/or 3-trifluoromethyl-substituted quinoline 8-carboxylic acid derivatives and their use for controlling undesirable plant growth | Helmut Hagen, Rolf-Dieter Kohler, Peter Plath, Thomas Liese-Sauer, Karl Eicken +2 more | 1989-02-14 |
| 4797148 | Quinoline derivatives and their use for controlling undesirable plant growth | Helmut Hagen, Peter Plath, Norbert Meyer, Bruno Wuerzer | 1989-01-10 |