Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861367 | 2-Mercapto-5-pyrazinyl-1,3,4-oxadiazoles or 2-mercapto-5-pyrazinyl-1,3,4-thiadiazoles as nematicides | Wolfgang Eckhardt, Ernst Beriger | 1989-08-29 |
| 4861787 | Nematicidal compositions | Ernst Beriger, Wolfgang Eckhardt | 1989-08-29 |
| 4851028 | Method of combating undesirable plant growth and of regulating plant growth | Helmut Zondler, Wolfgang Eckhardt, Hans-Georg Brunner | 1989-07-25 |
| 4849009 | 2-arylmethyliminopyrazines pyrazines, compositions and method of combating undesirable plant growth and of regulating plant growth | Helmut Zondler, Wolfgang Eckhardt | 1989-07-18 |
| 4840662 | N-(2-nitrophenyl)-5-aminopyrimidine derivatives and useful for controlling harmful micro-organisms | Helmut Zondler, Adolf Hubele | 1989-06-20 |