Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851028 | Method of combating undesirable plant growth and of regulating plant growth | Wolfgang Eckhardt, Robert Nyfeler, Hans-Georg Brunner | 1989-07-25 |
| 4849009 | 2-arylmethyliminopyrazines pyrazines, compositions and method of combating undesirable plant growth and of regulating plant growth | Wolfgang Eckhardt, Robert Nyfeler | 1989-07-18 |
| 4840662 | N-(2-nitrophenyl)-5-aminopyrimidine derivatives and useful for controlling harmful micro-organisms | Adolf Hubele, Robert Nyfeler | 1989-06-20 |