Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4622340 | Urea derivatives and pesticidal compositions containing same | Heinz-Manfred Becher, Ricarda Prokic-Immel | 1986-11-11 |
| 4457943 | N-(2H-Difluoro-3,5-dichloro-phenyl)-N'-(2,6-difluorobenzoyl) urea derivative and pesticidal compositions containing same | Heinz-Manfred Becher, Ricarda Prokic-Immel | 1984-07-03 |
| 4275077 | Insecticidal acyl urea derivatives | Heinz-Manfred Becher, Richard Sehring, Ricarda Prokic-Immel | 1981-06-23 |